Last name Sửu (Sửu 
) , in the world, is a rare family name. The cognomen Sửu is habitual in South-eastern Asia, particularly Vietnam, where it is a rare surname. Very seldom, Sửu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sửu | Vietnam |
| doãn sửu VN (b. 1945) |
|