Which Pokémon region is based primarily on France?

The Pokémon region based primarily on France is Kalos. It is the setting of Pokémon X and Y, which were released for the Nintendo 3DS in 2013.

Kalos includes locations inspired by French geography and culture. Lumiose City, the region’s major urban center, draws heavily from Paris and features a large tower modeled after the Eiffel Tower. The region’s central layout and architecture also reflect French influences.

Kalos introduced Generation VI Pokémon, including the Legendary Pokémon Xerneas and Yveltal. It also introduced Fairy-type Pokémon and Mega Evolution. Kalos is sometimes confused with Galar, which is based mainly on the United Kingdom, or Paldea, which draws from the Iberian Peninsula.