Cognomen 行正 (行正 
, Yukimasa 
) , around the world, is a rare surname. The cognomen 行正 is characteristic of Japan, where it is a rare surname, Malaysia, where it is a very rare surname, and China. Also, 行正 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 行正 | China |
| Yukimasa | Japan, China, Malaysia, United States, Brazil |