Last name 甲斐 (Kai 
, Каи 
, 甲斐 ) , throughout the world, is a common cognomen. The surname 甲斐 is characteristic of Malaysia, where it is a common surname, Macao, where it is quite a common surname, and Lebanon (explore the name in all countries). In absolute terms, the name is most common in Malaysia, China, and Myanmar. Likewise, 甲斐 is the forename as well as the last name.
| 甲斐正人 Japanese musician, JP (b. 1951) |
|
|
| 甲斐 秀樹 Japanese actor, JP (b. 1978) |
|
|
| 甲斐麻美 Japanese actress & gravure idol., JP (b. 1987) |
|