Surname Chi-Chu (Chi-Chu 
) , in the world, is an extremely rare cognomen. The last name Chi-Chu is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Much more frequently, Chi-Chu is the forename as well as the last name. Parts of the name also exists independently as a last name Chi, and a last name Chu.
| VARIANT | COUNTRY |
|---|---|
| Chi-Chu | United States, Japan |