This is a list of Pokémon by gender ratio.
Most Pokémon are either male or female. However, depending on the species, players are more likely to encounter a Pokémon of a specific gender than the other. Gender plays a vital role in breeding, as offspring inherit the species of the mother and compatible moves from the father. However, Pokémon of either gender can be used if the partner is a Ditto.
From Generation III onward, due to how the core series Pokémon games incorrectly determine a Pokémon's gender from its personality value, the ratios stated below are idealized approximations. From Generation III to V, Pokémon are more likely to be male than the nominal ratio; from Generation VI to VII, Pokémon are more likely to be the more common gender than the nominal ratio (1:1 is unaffected). Pokémon which are always one particular gender are unaffected.
Male only
These Pokémon only appear as male. As a result, these Pokémon are incapable of producing offspring of the same species without Ditto or a female counterpart (in the case of Nidoran♂ family and Volbeat).
Unbreedable
Despite being gendered, these Pokémon cannot breed.
1 ♀ : 7 ♂
These Pokémon normally appear as male, rarely female. This specific gender ratio is used to make it more difficult in breeding more of them since players usually get them as gifts or Fossils rather than catch them in the wild. All starter and Fossil Pokémon are in this group, as well as some other Pokémon normally not found in the wild.
Unbreedable
Despite being gendered, these Pokémon cannot breed.
1 ♀ : 3 ♂
These Pokémon usually appear as male, but can be female.
Unbreedable
Despite being gendered, these Pokémon cannot breed.
1 ♀ : 1 ♂
These Pokémon have an equal chance of being either male or female. The majority of Pokémon fall under this category.
Unbreedable
Despite being gendered, these Pokémon cannot breed.
3 ♀ : 1 ♂
These Pokémon usually appear as female, but can be male.
Unbreedable
Despite being gendered, these Pokémon cannot breed.
7 ♀ : 1 ♂
These Pokémon normally appear as female, rarely male.
Female only
These Pokémon only appear as female. As a result, prior to Generation VI, they are incapable of passing Egg moves to offspring without the help of Smeargle or a male counterpart.
Unbreedable
Despite being gendered, these Pokémon cannot breed.
Genderless
Pokémon in these lists are not assigned a gender. The ones in this list can breed only with Ditto.
Unbreedable
These Pokémon are genderless and cannot breed. Most of these Pokémon are Legendary, Mythical, or Ultra Beasts.
Trivia
- Generation VII added the most genderless Pokémon, with a current total of 27.