In all the world, Кога (Koga , 古河 , 古家 ) is quite a rare gender-neutral forename. The given name Кога is habitual in Tanzania, where it is quite a rare feminine name, North Macedonia, where it is a rare girly name, and Japan, where it is a very rare boy's name. Not in comparison with a country's population, the name is most common in Tanzania, China, and India. More frequently, Кога is the last name as well as the forename.
Кога is also a name for the fictitious and mythical characters: Koga , the fictional character from Inuyasha; Koga , character in Pokémon and Koga Kuchiki , the fictional character, Bleach.