Cognomen Tỵ (Tỵ 
) , in all the world, is a rare surname. The cognomen Tỵ is habitual in South-eastern Asia, particularly Vietnam, where it is a rare surname. Very seldom, Tỵ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tỵ | Vietnam |
| phạm quý tỵ Vietnamese politician, VN (b. 1953) |
|