Surname 吉光 (吉光 
) , globally, is quite a rare last name. The cognomen 吉光 is habitual in Eastern Asia, particularly China, where it is a very rare surname. More prevalently, 吉光 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 吉光 | China |
| 西大路 吉光 (b. 1874) |
|