It is not known to evolve into or from any other Pokémon.
When taken to Friseur Furfrou, Furfrou can have its hair trimmed into nine different styles to change its appearance. The styles include the Star, Diamond, Heart, Pharaoh, Kabuki, La Reine, Matron, Dandy, and Debutante Trim. If trimmed, Furfrou will revert back into its natural appearance after five days or if deposited to the PC.
Furfrou is a dog-like Pokémon with thick, white fur that covers its black body apart from its paws and face. It has round eyes with blue eyelids and red irises, a pointed snout with a round nose at the end, and long rectangular ears. When its mouth is open, two pointed teeth can be seen on its upper jaw. This Pokémon's furry coat cushions it against physical attacks. Furfrou is known to be loyal to its Trainer. It used to guard the king in the ancient times of Kalos. Like some real-world poodles, some domesticated Furfrou are commonly seen with their fur trimmed into various styles.
Furfrou's different trims are not counted in the Pokédex as separate forms, similarly to the different types of Arceus and Genesect with differing Drives.
However, unlike Arceus and Genesect, Furfrou's trims have distinct menu sprites.
Origin
Furfrou is based on a poodle. Its untrimmed form seems to draw some inspiration from afghan hounds.
Name origin
Furfrou is a combination of fur and frou-frou (fancy, overly elaborate).
Trimmien may be a combination of trimming and chien (French for dog). It could also be a play on the phrase très bien (French for excellent).
This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon species, as well as Pokémon groups and forms.