Surname 先 (先 
, 선 
, Senpai 
) , globally, is a widespread family name. The cognomen 先 is habitual in China, where it is quite a common surname, South Korea, and Indonesia, where it is a rare surname. Very seldom, 先 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 先 | China |
| 선 | South Korea |
| Senpai | Japan, Indonesia, Saudi Arabia, Morocco, Algeria |
| Xiān | Myanmar |