I'v alwayse been wondering.....
Pokemon was created by Satoshi Tajiri in 1996. He based Pokemon on real world animals because as a kid he liked exploring. He got the idea of catching Pokemon because one of his hobbies as a kid was catching insects and tadpoles. Tajiri formed Game Freak with the help of his friends. Originally his game was called Capsule Monsters but was later changed into Pocket Monsters.
If you mean "Who Created Pokemon, It Was Nintendo and The Pokemon Company, if thats not that you meant, then Narwhals1 is correct.