>
Around the globe, Каку (Kaku , 角 , 鶴 ) is a common gender-neutral given name. The forename Каку is habitual in India, where it is quite a rare epicene name, Nigeria, where it is quite a rare largely male, but seldom feminine name, and Oman, where it is a rare boy's name. In absolute terms, it is the most numerous in India, China, and Nigeria. Also, Каку is the last name as well as the forename.
Каку is also a name for the fictitious and mythical characters: Kaku , the fictional character from One Piece.