Professor Oak

Professor Samuel Oak オーキド・ユキナリ博士 Dr. Yukinari Ohkido
Art from Let's Go, Pikachu! and Let's Go, Eevee! by Megumi Mizutani
Gender	Male
Eye color	Black
Hair color	Gray
Hometown	Pallet Town
Region	Kanto
Relatives	Blue (grandson) Daisy/May (granddaughter) Samson (cousin)
Trainer class	Former Trainer, Pokémon Professor
Generation	I, II, III, IV, VII, VIII
Games	Red, Blue, Yellow, Gold, Silver, Crystal, FireRed, LeafGreen, Diamond, Pearl, Platinum, HeartGold, SoulSilver, Let's Go, Pikachu!, Let's Go, Eevee!, Brilliant Diamond, Shining Pearl, Snap, Stadium, PokéROM, Puzzle League, Hey You, Pikachu!, Stadium 2, Channel, Masters EX
Game animation debut	File 1: Red
English voice actor	Kyle Hebert (Origins) Ben Diskin (The Two Professors) Joe J. Thomas (Masters EX) Keith Silverstein (Evolutions)
Japanese voice actor	Katsuji Mori (Origins) Tadashi Wakabayashi (The Two Professors) Ken'ichi Ogata (Masters EX) Keiichi Sonobe (Evolutions)
Anime counterpart	Professor Oak
Counterpart debut	Pokémon - I Choose You!
Manga counterpart(s)	Professor Oak, Professor Oak

Professor Samuel Oak (Japanese: オーキド・ユキナリ博士 Dr. Yukinari Ohkido) is a Pokémon Professor who lives and works at his research lab in Pallet Town of the Kanto region.

Terminology

In the Japanese version, Professor Oak's given name ユキナリ (Yukinari) first appeared in "Pocket Monsters Zukan", a guidebook published by Aspect. The given name had later appeared in various media such as The Electric Tale of Pikachu, Pocket Monsters: The Animation, the fourth Pokémon movie, and Pokémon Adventures, before it was confirmed as his canon name in the core series with Samson Oak mentioning it in Pokémon Sun and Moon.

In the core series games

Professor Oak works in his Laboratory in Pallet Town with his aides. He gives Red and Blue their first partner Pokémon in Pokémon Red, Blue, Green, Yellow, FireRed and LeafGreen. In the last pair of games, he also grants the player the National Pokédex once they've caught at least 60 Pokémon. He is an idol to many Trainers and researchers, including Professor Elm, and always plays an important supporting role in the many games that he appears in.

He was a childhood friend of Agatha. They remained good friends and top-class Pokémon Trainers until Oak stopped battling and became interested in Pokémon research. Agatha said that he became soft and started to regard him as a fool. However, Oak still affiliates with the Pokémon League as an adviser. In Pokémon Masters EX, during her Sync Pair Story "A Day with Agatha", Agatha explains how she and Oak met. Oak was always friendly and open when he was young and would talk to Agatha and try to help her. Though he was only trying to be nice, it still annoyed Agatha because she wanted to be left alone. Agatha would battle Oak to try and get him to go away, but he was always better than her, and so she would battle him again and again. Eventually, the time they spent together began to mean a lot to Agatha. As a result, when Oak got the idea to invent the Pokédex and subsequently stopped battling, Agatha felt betrayed.

In his own Pokémon Masters EX Sync Pair Story, "A Day With Professor Oak", Professor Oak reveals that his trusted Pokémon partner is a Nidorino.

Oak with Ethan and Mr. Pokémon in Generation IV

Professor Oak was always well known in Kanto, but in Generation II and Pokémon HeartGold and SoulSilver, he becomes more of a celebrity, a "star Pokémon Researcher". He became famous in Johto because of his Radio Show with DJ Mary. He was going to turn down the show at first, but Mary's energy and persistence wore him down. Ethan/Kris/Lyra first meets him visiting the home of Mr. Pokémon, another of Oak's childhood friends. Later he grants the young Trainer access to Mt. Silver, a place which only the finest Pokémon Trainers may enter, after the player has earned all the Badges in Johto and later Kanto. In the remakes, he also gives the player the National Pokédex after they've entered the Hall of Fame, gives them HM08 (Rock Climb) once they've earned all 16 Badges, allows them to choose one of the Kanto first partner Pokémon once they've beaten Red, and hands over the Jade Orb if the player has caught both Groudon and Kyogre at the Embedded Tower.

Professor Oak has many old friends. One of them is Kurt, a Poké Ball smith from Azalea Town, and another is Professor Elm, who used to be Oak's assistant. In fact, there is a picture on Kurt's wall saying "...a young Prof Oak?" and an email addressed to him from Professor Elm can be found in his lab:

"...

Prof. Oak, how is your research

coming along? I'm still plugging

away. I heard rumors

that <player> is

getting quite a reputation.

I'm delighted to hear that.

Elm in New Bark Town 8-)"

Professor Oak has many fans and admirers. One of them is Schoolboy Chad, who frequently calls the player to share trivia about Oak.

Professor Oak is also a good friend of Professor Rowan. He visits Sinnoh often, has a home in Eterna City, introduces Trainers to Pal Park^DPPt/Ramanas Park^BDSP, and gives them the National Pokédex, as well as the Up-Grade, Poké Radar, and the Trainer Counter app for their Pokétch. A letter that he sends to the player in a special event allows the player to find Shaymin. An aide in Rowan's laboratory mentions that Oak is Rowan's junior in terms of seniority. In Platinum, after providing the Up-Grade, Professor Oak will talk about the legendary birds and say that they have been sighted in Sinnoh. From this point Articuno, Zapdos, and Moltres will be visible roaming on the map.

Professor Oak also appears in Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, where he serves the same role for Chase/Elaine and Trace that he originally served for Red and Blue. He originally has two first partner Pokémon to give to them, but after the player catches their own partner Pokémon, the third Pokémon goes unrevealed.

Fame Checker

This is a list of the Fame Checker's information on Professor Oak in Pokémon FireRed and LeafGreen.

Pallet Town - Sign

• What does this person do?

"Oak Pokémon Research Lab."

Pallet Town Research Lab - Prof. Oak

• What is this person like?

"To make a complete guide on all the Pokémon in the world...

That was my dream!"

Pallet Town Research Lab - Aide

• What is this person like?

"Prof. Oak may not look like much, but he's the authority on Pokémon.

Many Pokémon Trainers hold him in high regard."

Viridian City - Pokémon Journal

• Family and friends?

"Prof. Oak reportedly lives with his grandchildren, Daisy and Blue."

Pokémon League - Agatha

• Family and friends?

"I hear Oak's taken a lot of interest in you, child.

That old duff was once tough and handsome.

But that was decades ago. He's a shadow of his former self."

Pallet Town Research Lab - Aide*

• What does this person do?

"Prof. Oak is going to have his own radio show soon.

The program will be called Prof. Oak's Pokémon Seminar."

Message from Oak

• From: Prof. Oak
• To: [Player]

"Why do Pokémon compete and battle so hard for you?

They do so because they can see the love and trust you have towards Pokémon.

Never forget that."

Pokémon

Professor Oak gives the player their first partner Pokémon in every Kanto-based game.

Pokémon Red and Blue

Types: Grass Poison Bulbasaur Lv.5 Tackle Normal   --       Growl Normal   --       Struggle Normal   --       Struggle Normal   --

Type: Fire Unknown Charmander Lv.5 Scratch Normal   --       Growl Normal   --       Struggle Normal   --       Struggle Normal   --

Type: Water Unknown Squirtle Lv.5 Tackle Normal   --       Tail Whip Normal   --       Struggle Normal   --       Struggle Normal   --

Pokémon Yellow

Main article: Pikachu (Yellow)

Professor Oak catches this Pikachu while stopping the player from beginning their journey without any Pokémon. He later decides to give it to them.

	Type: Electric Unknown
Pikachu Lv.5
ThunderShock Electric   --       Growl Normal   --       Struggle Normal   --       Struggle Normal   --

This Eevee was intended for the player, but is taken by Blue in his impatience. Its evolutionary path is determined by the player's interactions with its Trainer.

	Type: Normal Unknown
Eevee Lv.5
Tackle Normal   --       Tail Whip Normal   --       Struggle Normal   --       Struggle Normal   --

Pokémon FireRed and LeafGreen

Types: Grass Poison Ability: Overgrow Held item: None Bulbasaur♂/♀ Lv.5 Tackle Normal   --       Growl Normal   --       Struggle Normal   --       Struggle Normal   --

Type: Fire Unknown Ability: Blaze Held item: None Charmander♂/♀ Lv.5 Scratch Normal   --       Growl Normal   --       Struggle Normal   --       Struggle Normal   --

Type: Water Unknown Ability: Torrent Held item: None Squirtle♂/♀ Lv.5 Tackle Normal   --       Tail Whip Normal   --       Struggle Normal   --       Struggle Normal   --

Pokémon HeartGold and SoulSilver

After the player has defeated Red, Professor Oak gifts them with one of the Kanto first partner Pokémon.

Types: Grass Poison Ability: Overgrow Held item: None Bulbasaur♂/♀ Lv.5 Tackle Normal Physical   --       Growl Normal Status   --       Curse Unknown Status   --       Curse Unknown Status   --

Type: Fire Unknown Ability: Blaze Held item: None Charmander♂/♀ Lv.5 Scratch Normal Physical   --       Growl Normal Status   --       Curse Unknown Status   --       Curse Unknown Status   --

Type: Water Unknown Ability: Torrent Held item: None Squirtle♂/♀ Lv.5 Tackle Normal Physical   --       Tail Whip Normal Status   --       Curse Unknown Status   --       Curse Unknown Status   --

Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!

Type: Electric Unknown Mega Stone: None Pikachu♂/♀ Lv.5 Thunder Shock Electric Special   --       Growl Normal Status   --       Tail Whip Normal Status   --       Curse Unknown Status   --

Type: Normal Unknown Mega Stone: None Eevee♂/♀ Lv.5 Tackle Normal Physical   --       Growl Normal Status   --       Tail Whip Normal Status   --       Curse Unknown Status   --

Unused teams

Main article: Unused Trainer data → Prof. Oak

Professor Oak, who cannot normally be battled

Unused Trainer data for Prof. Oak (Japanese: オーキドせんせい Teacher Oak) exists in all Generation I games.

Prof. Oak has data for three different teams using different first partner Pokémon, with each Pokémon being level 66-70, higher than Blue's Champion battle team. It is possible he was meant to be a late-game opponent, perhaps similar to Red in Generation II.

He can be battled by exploiting certain glitches.

In the side series games

Pokémon Stadium series

Professor Oak in Pokémon Stadium

Professor Oak Pokémon Stadium 2

In Pokémon Stadium and Pokémon Stadium 2, Professor Oak is the owner of the Pokémon Lab, which is available if the Stadium game is connected to one or more core series games via Transfer Pak. The laboratory contains various machines with features such as trading Pokémon between games, transferring items and Pokémon to and from the player's PC, viewing the Pokédex, etc. In both games, Professor Oak describes the machines in the laboratory.

The Transfer Pak features were previously introduced in the Japanese Pokémon Stadium, but they were part of the menu at the beginning at the game and didn't involve Professor Oak or his laboratory.

In the spin-off games

Hey You, Pikachu!

Professor Oak appears in Hey You, Pikachu!, where he enlists the player to help test a translation device called the PokéHelper, using a wild Pikachu as the main research subject.

Pokémon Trading Card Game series

In Pokémon Trading Card Game and Pokémon Trading Card Game 2: The Invasion of Team GR!, the Professor Oak card is available. Additionally, there are cards featuring the Impostor Professor Oak.

Pokémon Snap

Professor Oak in Pokémon Snap

Professor Oak also is one of the two human characters that appear in Pokémon Snap. In order to complete his Pokémon Report on the denizens of Pokémon Island, he hires Todd to take pictures for the report. He provides Todd with the ZERO-ONE and its Dash Engine upgrade, Pokémon food, Pester Balls, and a Poké Flute. When Todd takes a picture of each of the Pokémon signs, Professor Oak is able to drawn a connection between them and the constellations to determine that Mew must be on Rainbow Cloud.

Puzzle series

In Pokémon Puzzle Challenge, Professor Oak appears at the main menu and some other screens at the beginning of the game, explaining the available options to the player. He also talks to the player at various points in the "Puzzle" section, which consists of various rounds with puzzles.

At the beginning of Pokémon Puzzle League, there is a short animated introduction where Ash Ketchum receives a phone call from Professor Oak, telling him that he has been selected as a challenger of the Puzzle League Tournament at Puzzle League. In Prof. Oak's Labs at the Puzzle Village, Professor Oak explains how to play this game.

Play It! series

In Pokémon Play It! and Pokémon Play It! Version 2, the player is able to receive two certificates signed by Professor Oak; each certificate is awarded for answering a separate set of 10 questions correctly.

In both games, as seen in the option about "The playing field" in the Help section, Julie says that she was in the middle of a Pokémon TCG match with Professor Oak but he had to leave.

PokéROM

Professor Oak is the narrator of PokéROM, voiced by Stuart Zagnit, his voice actor in the anime at the time.

Pokémon Channel

Professor Oak in Pokémon Channel

In Pokémon Channel, Professor Oak launches the titular Pokémon Channel, and tuning into the "Oak's Report" channel allows the player to save their game.

Pokémon GO

In Pokémon GO, it is mentioned that he was Professor Willow's mentor.

In the GO Web series, The Two Professors, Willow contacts Oak to discuss the recent appearance of Ditto transformed into an unrecognizable Pokémon. Oak is able to identify it as the Mythical Pokémon, Meltan.

Pokémon Masters EX

Main article: Professor Oak (Masters)

Professor Oak, in his Pokémon FireRed and LeafGreen design, forms a sync pair with Mew and Nidorino in Pokémon Masters EX. Professor Oak became a playable sync pair on February 14, 2020.

Professor Oak first appeared as an NPC during the second chapter of PML Arc. He later made a notable appearance in one of the game's Main Stories, the Villain Arc.

Dex	Trainer		NDex	Pokémon		Type	Weakness	Role	EX role	Base potential	Availability
#082		Professor Oak	#0151		Mew	Psychic	Bug			★★★☆☆☆EX	Log-in from February 14 to March 16, 2020 and from August 28, 2020 indefinitely
#082		Professor Oak	#0033		Nidorino♂	Poison	Psychic			★★★★★☆EX	Sync Pair-Up Event

Gallery

Artwork

Official artwork from Red and Blue by Ken Sugimori	Official artwork from Gold and Silver	Official artwork from FireRed and LeafGreen by Ken Sugimori	Official artwork from Pokémon Origins	Concept art from Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!

Sprites and models

In the core series

Intro sprite from Red and Blue	Intro sprite from Yellow	Prototype sprite from Spaceworld '97 demo	Intro sprite from Generation II	Intro sprite from FireRed and LeafGreen	Fame Checker sprite from FireRed and LeafGreen	Beta Fame Checker sprite from FireRed and LeafGreen	Intro sprite from HeartGold and SoulSilver	Overworld model from Let's Go, Pikachu! and Let's Go, Eevee!	Overworld model from Brilliant Diamond and Shining Pearl
Overworld sprite from Generation I	Back sprite from Yellow		Overworld sprite from Generation II	Overworld sprite from FireRed and LeafGreen			Overworld sprite from Generation IV

In other games

This section is incomplete. Please feel free to edit this section to add missing information and complete it. Reason: Sprite from the tutorial of Puzzle League

Portrait from Stadium and Stadium 2	Menu sprite from Snap	Dialogue sprite from Hey You, Pikachu!	Dialogue sprites from Channel		Menu sprite from Puzzle Challenge	Professor Oak sprite from the Trading Card Game	Professor Oak sprite from Card GB2: Here Comes Team GR!	Unused overworld sprite from Ranger

Other images

Professor Oak's signature from Play It! and Play It! 2

Quotes

Main article: Professor Oak/Quotes

In the anime

Professor Oak in Pokémon Journeys: The Series

Main series

Main article: Professor Oak (anime)

Professor Oak appeared semi-regularly from the original series until Pokémon Journeys: The Series, giving Ash Ketchum useful information for his journey and taking care of the Pokémon he had left at his laboratory.

Pokémon Origins

Professor Oak in Pokémon Origins

Professor Oak appeared as a major character in the Pokémon Origins miniseries, where he served a similar role as in Pokémon Red and Blue. He assigned Red and Blue with the task of completing his dream of a complete Pokédex. Eventually, Red did manage to catch all 150 known Pokémon, but then realized that Mew was still out there, and decided to continue his effort in bringing Professor Oak's dream to a true completion.

Pokémon

On hand

Eevee

Debut	File 1: Red

Professor Oak sent out his Eevee during his introduction of the Pokémon world.

None of Eevee's moves are known.

Gives to new Trainers

Bulbasaur

Squirtle

Charmander

Gave away to new Trainers

Red's Charmander

Blue's Squirtle

Voice actors

Language Voice actor Japanese 森功至 Katsuji Mori English Kyle Hebert Italian Mario Scarabelli European Spanish José Padilla

Pokémon Generations

Though Professor Oak did not physically appear in Pokémon Generations, he was mentioned by Agatha during her battle against Blue in The Challenger.

GOTCHA!

Professor Oak briefly appeared in GOTCHA!.

Pokémon Evolutions

Professor Oak in Pokémon Evolutions

Professor Oak appeared in The Discovery. Green met him at his laboratory in Pallet Town, apologizing for having failed to complete the Pokédex. Professor Oak, however, revealed that other Pallet Town Trainers had been taking on the same project as well, and thanks to them, the Pokédex was now complete. Just then, he received a call from a colleague of his, who informed him of a new Pokémon made entirely of metal. However, when Professor Oak turned around to share the news with Green, Elaine, and Trace, he was surprised to see them having already left.

Pokémon

Gives to new Trainers

Bulbasaur

Squirtle

Charmander

Voice actors

Language Voice actor Japanese 園部啓一 Keiichi Sonobe English Keith Silverstein Italian Paolo Sesana European Spanish Francisco Javier Garaboa

In the manga

As he is the leading professor of the Kanto region, Professor Oak appears in many different Pokémon manga series.

The Electric Tale of Pikachu

Professor Oak in The Electric Tale of Pikachu

Main article: Professor Oak (anime)

Professor Oak makes a few appearances in The Electric Tale of Pikachu. He is a role model to Ash and is Bill's mentor. Unlike in the anime, he does not give Ash his Pikachu; in fact, he does not meet Ash until after he has already begun his Pokémon journey.

Pokémon Adventures

Professor Oak in Pokémon Adventures

Main article: Professor Oak (Adventures)

Professor Oak has a recurring role in Pokémon Adventures. His first appearance was in A Glimpse of the Glow, and he has appeared in most arcs since. Over the course of the manga, Professor Oak helps out the Pokédex holders in their various quests. His backstory has been largely expanded in this canon. He's a highly respected figure in the field of Pokémon research the world over, the inventor of the Pokédex, and a former Pokémon League Champion.

Pokémon Gold & Silver: The Golden Boys

Professor Oak first appeared in Falkner The Bird Keeper's Challenge!!, where he witnessed Articuno's appearance at the Violet Gym. He also saw the battle between Articuno and Gold's Pokémon. He then offered to bring the Pokémon Egg Mr. Pokémon had to Professor Elm in Let's Aim For The Goal!. Before he leaving, he gave Gold a Pokédex, with the belief that Gold would become a great Trainer.

Pokémon Pocket Monsters

Professor Oak in the Pocket Monsters manga

Main article: Professor Oak (Pocket Monsters)

Professor Oak is a character in Pokémon Pocket Monsters, where he is in regular contact with Red and Green.

Pokémon Zensho

Spoiler warning: this article may contain major plot or ending details.

Professor Oak in Pokémon Zensho

Professor Oak appears in Pokémon Zensho and has fulfilled the same role similar to the ones in other media. Professor Oak debuted in Prologue: Pallet Town, where he saved Satoshi from a flock of Pidgey that were about to attack him. As thanks for Professor Oak's rescue of Satoshi, Satoshi went to his lab and chose Charmander as his first partner Pokémon, due to it saving him earlier. Shigeru, Satoshi's rival, chose Squirtle, which made Professor Oak keep Bulbasaur, as he would have been too lonely otherwise.

In Celadon City, it was revealed that Professor Oak is taking care of Shigeru and Daisy Oak since their parents died in a car crash. He was last seen in Indigo Plateau, telling Satoshi and Shigeru about a rare Pokémon that dwells in a cave.

Pokémon

On hand

Bulbasaur → Ivysaur → Venusaur

Debut	Pallet Town

Professor Oak kept Bulbasaur after Satoshi and Shigeru got their first partner Pokémon as he would have been too lonely without it. It was revealed to have evolved into Ivysaur and then Venusaur sometime when Satoshi went to Indigo Plateau. Venusaur was then seen with Professor Oak around the end of the chapter when he was explaining to Satoshi and Shigeru about a rare cave that contained the Legendary Pokémon, Mewtwo.

None of Venusaur's moves are known.

Gives to new Trainers

Bulbasaur

Charmander

Squirtle

Given away

Charmander

Debut	Pallet Town

Main article: Satoshi's Charmander (Zensho)

Professor Oak gave this Charmander to Satoshi as his choice of being his first Pokémon since Charmander rescued Satoshi from a flock of Pidgey earlier.

Squirtle

Debut	Pallet Town

Shigeru chose Squirtle as it had the type-advantage against Satoshi's Charmander.

Squirtle's only known move is Water Gun.

	Spoilers end here.

Pokémon Newspaper Strip

Professor Oak was first mentioned in Strip 6. After a battle between Pikachu and Squirtle, a boy wanted to know why water shorts out electricity, and the girl he was with suggested asking Oak.

In the TCG

Artwork

Artwork from the cards:

Researching	Visiting Sinnoh

Cards

This listing is of cards mentioning or featuring Professor Oak in the Pokémon Trading Card Game.

Related cards Cards listed with a blue background are only legal to use in the current Expanded format. Cards listed with a green background are legal to use in both the current Standard and Expanded formats.
Card	Type	English Expansion	Rarity	#	Japanese Expansion	Rarity	#
Professor Oak	T	Base Set		88/102	Expansion Pack
		Base Set 2		116/130
		Venusaur & Lugia ex Deck		024/034	Venusaur & Lugia ex Deck		026/032
Professor Oak's Research	T [Su]	Expedition Base Set		149/165	Base Expansion Pack		053/128
		EX FireRed & LeafGreen		98/112	Flight of Legends		078/082
					Venusaur/Charizard/Blastoise Random Constructed Starter Decks		051/052
					Side Deck		007/012
					Mew Quarter Deck
		EX Dragon Frontiers		80/101	Imprison! Gardevoir ex Constructed Standard Deck		016/024
Professor Oak's Visit	Su	Secret Wonders		122/132	Dialga LV.X Constructed Standard Deck
					Palkia LV.X Constructed Standard Deck
					Unnumbered Promotional cards
					Magmortar Half Deck
					Electivire Half Deck
		Arceus		90/99	Advent of Arceus		087/090
Professor Oak's New Theory	Su	HeartGold & SoulSilver		101/123	HeartGold Collection		068/070
					Steelix Constructed Standard Deck		015/019
					Tyranitar Constructed Standard Deck		015/019
		Call of Legends		83/95
Professor Oak's Hint	Su	Evolutions		84/108	Expansion Pack 20th Anniversary		084/087
Professor Oak's Setup	Su	Cosmic Eclipse		201/236	Remix Bout		056/064
		Cosmic Eclipse		233/236	Remix Bout		072/064
Professor's Research Professor Oak	Su	Celebrations		023/025	25th Anniversary Collection		003/028
		Celebrations		024/025	25th Anniversary Collection		029/028

There also exists a "dark counterpart" of Professor Oak, called Imposter Professor Oak, who has also appeared in other Pokémon media. Apart from his first incarnation, expansions in which he has been featured also include Dark Pokémon. The following list is of cards mentioning or featuring Imposter Professor Oak.

Related cards Cards listed with a blue background are only legal to use in the current Expanded format. Cards listed with a green background are legal to use in both the current Standard and Expanded formats.
Card	Type	English Expansion	Rarity	#	Japanese Expansion	Rarity	#
Impostor Professor Oak	T	Base Set		73/102	Expansion Pack
		Base Set 2		102/130
		Celebrations		73/102	Promo Card Pack 25th Anniversary Edition		004/025
Imposter Oak's Revenge	T	Team Rocket		76/82	Rocket Gang
Impostor Professor Oak's Invention	T	Neo Destiny		94/105	Darkness, and to Light...

Other appearances

Super Smash Bros. Melee

Professor Oak appears as a random trophy wearing his regular clothing from the anime.

Trophy information

The leading expert on the study of Pokémon. It seems there are always new and mysterious species of Pokémon being brought to light, and Professor Oak is at the heart of it all with his insightful research. The Pokédex is one of his inventions: new Trainers receive one, and a Pokémon to boot, when they start out.

Trivia

• Professor Oak has appeared in the most generations of any Pokémon Professor, appearing in Generation I and their Generation III and VII remakes as the regional professor and making cameo appearances in Generations II, IV, and the Generation IV remakes in Generation VIII.
• If the player speaks to Professor Oak in Pokémon HeartGold and SoulSilver and has their Pokédex evaluated with at least 484 of the 493 Pokémon caught, he will say "Meeting you is something l will cherish all my life long.", using a lowercase L instead of an uppercase I.
• Professor Oak is the only person to give the player their Pokédex in more than one region, doing so in both Kanto and Johto.

Names

Language	Name	Origin
Japanese	オーキド・ユキナリ博士 Dr. Yukinari Ohkido	From orchid and the family name 大木戸 Ōkido (large wooden city gate or castle door) Incidentally, Yukinari resembles Yukinori, the actual given name of Unshō Ishizuka.
English, Italian	Professor Samuel Oak	From oak and similar to his Japanese name. His given name may be from Salem Oak (historic tree in Salem, New Jersey)
German	Professor Samuel Eich	From Eiche (oak) and his English name
Spanish	Profesor Samuel Oak	From his English name
French	Professeur Samuel Chen	From chêne (oak) and his English name
	Professeur Oak*	From his English name
Korean	오용호 박사 Dr. O Yongho	From the first syllable of his Japanese name and the surname 오 O
Chinese (Mandarin)	大木博士 Dr. Dàmù 雪成 Xuěchéng*	From the Japanese names 大木戸 Ōkido and 雪成 Yukinari
	幸成 Xìngchéng*	From the Japanese name 幸成 Yukinari
Chinese (Cantonese)	大木博士 Dr. Daaihmuhk 雪成 Syutsìhng	From the Japanese names 大木戸 Ōkido and 雪成 Yukinari
Czech	Profesor Oak	From his English name
Finnish	Professori Samuel Oak	From his English name
Hungarian	Oak Professzor	From his English name
Indonesian	Profesor Oak* Profesor Ohkido* Profesor Orchid	From his English name From his Japanese name From his Japanese name
Polish	Profesor Oak	From his English name
Brazilian Portuguese	Professor Samuel Carvalho* Professor Oak*	From carvalho (oak) and his English name Same as English name
Russian	Профессор Семуель Оук Professor Semuyel' Ouk	Transcription of his English name
Thai	ศาสตราจารย์โอคิโดะ Sattrachan Okhido* ดร.โอคิโดะ Dr. Okhido* ดร.ออคิด Dr. Okhit ยูกินาริ Yukinari	Transcription of his Japanese name
Vietnamese	Giáo sư Yukinari Ohkido	Transcription of his Japanese name

Related articles

• Professor Oak (anime)
• Professor Oak (Adventures)
• Images on the Bulbagarden Archives

Non-player characters in the core series games

Kanto Professor Oak • Mom (Kanto) • Mom (LGPE) • Red • Blue • Green • Trace • Daisy • Old man • Bill • Celio • Mr. Fuji • Safari Zone Warden • Copycat • Primo • Koichi Pokémon Fan Club Chairman • Erik and Sara • Teala • Mina • Cal • Steven Stone • Maylene • Cameron • Mr. Game • Morimoto Team Rocket • Gym guide • Gym Leaders • Elite Four • Professor's aides • Magikarp salesman • Name Rater • Day-Care Person • Mr. Hyper Johto Professor Elm • Professor Oak • Mom • Ethan • Lyra • Silver • Mr. Pokémon • Eusine • Lance • Red • Kiyo • Baoba • Magnus • Earl • Kurt • Carrie • Dude Mary • Buena • Radio Director • Haircut brothers • Webster • Master • Li • Wilma • Primo • Maximo • Jet • Caitlin • Cynthia • Cameron • Mr. Game • Felicity • Teala Team Rocket • Gym guide • Gym Leaders • Frontier Brains • Kimono Girls • Week Siblings • Name Rater • Poké Seer • Day-Care Couple • Professor's aides Sinnoh Professor Rowan • Professor Oak • Johanna • Barry • Lucas • Dawn • Cynthia • Looker • Stat Trainers (Cheryl • Riley • Mira • Buck • Marley) Bebe • Teala • Felicity • Roseanne • Rad Rickshaw • Eldritch • Wilma • Jasmine • Caitlin • Julia • Jordan • Dexter • Keira • Mr. Backlot • Morimoto Underground Man • Mr. Goods • Mr. Fuego • Pokétch Co. President • Dr. Footstep • Pokémon Fan Club Chairman • Helena • Ketch Appy Team Galactic • Gym guide • Gym Leaders • Elite Four • Frontier Brains • Name Rater • Day-Care Couple • Professor's assistants • Stats judge See also: Hoenn Professor Birch • Mom • May • Brendan • Wally • Wanda • Steven Stone • Wallace • Scott • Mr. Briney • Mr. Stone • Gabby and Ty • Lanette Brigette • Professor Cozmo • Pokémon Fan Club Chairman • Rydel • Winstrate family • Captain Stern • Trick Master • Treasure Hunter • Dock Apprentice • Pokémon Center Ladies • Old guys • Mr. Bonding • Teala • Aarune • Lisia • Zinnia • Looker • Inver • Chaz • Fossil Maniac • Kiri • Memory Girl Team Aqua • Team Magma • Gym Leaders • Elite Four • Frontier Brains • Battle Chatelaines • Gym guide • Name Rater • Day-Care Couple • Stats judge Sevii Celio • Bill • Lostelle • Lorelei • Selphy • Teala Team Rocket • Day-Care Couple Unova Professor Juniper • Mom (BW) • Mom (B2W2) • Cheren • Bianca • Bianca's father • Hugh • Hugh's sister • Cedric Juniper • Fennel • Amanita Cilan • Chili • Cress • Lenora • Hawes • Loblolly • Charles • Iris • Drayden • Alder • Benga • Curtis • Yancy • Brycen • Sabrina • Pop Roxie Hilbert • Hilda • Nate • Rosa • Ingo • Emmet • Cynthia • Looker • N • Colress • Morimoto • Nishino • Pokémon Fan Club Chairman Team Plasma • Clyde • Gym Leaders • Elite Four • PWT participants • Name Rater • Day-Care Couple • Judge • Magikarp salesman Kalos Professor Sycamore • Grace • Calem • Serena • Shauna • Tierno • Trevor • Alexa • Cassius • Inver • Sina • Dexio • Gurkinn Bonnie • Diantha • AZ • Looker • Emma • Mr. Bonding • Phil the Photo Guy • Memory Girl • Pokémon Fan Club Chairman Team Flare • Gym guide • Gym Leaders • Elite Four • Battle Chatelaines • Name Rater • Day-Care Couple • Judge Alola Professor Kukui • Mom • Lillie • Nebby • Hau • Rotom • Professor Burnet • Molayne • Samson Oak • Ryuki • Mohn Red • Blue • Wally • Cynthia • Grimsley • Colress • Sina • Dexio • Looker • Anabel • Necrozma • Morimoto • Iwao Team Skull • Aether Foundation • Ultra Recon Squad • Team Rainbow Rocket Trial Captains • Island kahunas • Elite Four • Name Rater • Judge • Mr. Hyper • Gester Galar Professor Magnolia • Mum • Hop • Bede • Marnie • Sonia • Leon Sordward • Shielbert • Mustard • Klara • Avery • Honey • Hyde • Peony • Peonia • Calyrex • Ball Guy Watt Traders • Ingredients Sellers • Digging Duo • Camping King Team Yell • Macro Cosmos • Dan • Gym Leaders • Morimoto • Cara Liss • Jack Hisui Cogita • Arceus • Choy • Anthe • Miss Fortunes (Charm • Clover • Coin) • Vessa Galaxy Team • Diamond Clan • Pearl Clan • Ginkgo Guild Paldea Professor Sada • Professor Turo • Mom • Nemona • Koraidon • Miraidon • Geeta • Arven • Penny • Heath Clavell • Jacq • Dendra • Miriam • Raifort • Saguaro • Salvatore • Tyme • Harrington Carmine • Kieran • Briar • Cyrano • Terapagos • Billy and O'Nare Team Star • Gym Leaders • Elite Four • Pokémon League representatives Kitakami Carmine • Kieran • Briar • Caretaker • Yukito and Hideko • Ogerpon • Pecharunt • Perrin • Billy and O'Nare Koraidon • Miraidon • Jacq • Nemona • Arven • Penny • Terapagos • Professor Sada • Professor Turo Blueberry Cyrano • Briar • Carmine • Kieran • Koraidon • Miraidon • Geeta • Rika • Clavell • Perrin • Snacksworth • Synclaire BB Elite Four • Special Coaches • Guidance counselors

Pokémon Professors Oak (anime • Adventures • Pocket Monsters • Masters) • Elm • Birch • Rowan • Aurea Juniper • Cedric Juniper • Sycamore (anime • Masters) Kukui (anime • Masters) • Burnet (anime) • Samson • Mohn • Magnolia • Sonia (Masters) • Laventon • Sada • Turo Ivy • Cerise • Amaranth • Friede • Krane • P • Hastings • Berlitz • Holly • Tetra • Willow • Bellis • Mirror • Phorus • Fir • Neroli

Capture tutors Old man • Primo • Professor Oak • Dude • Ethan/Lyra • Wally • Lucas/Dawn • Professor Juniper Bianca • Calem/Serena • Professor Kukui • Leon • Professor Laventon • Nemona

This game character article is part of Project CharacterDex, a Bulbapedia project that aims to write comprehensive articles on each character found in the Pokémon games.