Family name Aisei (Aisei 
) , all over the world, is a very rare surname. The cognomen Aisei is habitual in Japan, where it is a very rare surname, Spain, and China, where it is an extremely rare surname. Much more frequently, Aisei is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aisei | Philippines, Spain, Japan, United States, China |