Surname Kiyoji (Kiyoji 
) , in the entire world, is quite a rare cognomen. The surname Kiyoji is habitual in Eastern Asia, particularly Japan, where it is quite a rare surname, and China, where it is an extremely rare surname. More frequently, Kiyoji is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kiyoji | Canada, Brazil, Japan, United States, China |