Cognomen ทู้ (Thu 
, ทู้) , throughout the world, is a prevalent last name. The family name ทู้ is characteristic of Myanmar, where it is a prevalent surname, Macao, where it is a common surname, and Vietnam, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in South-eastern Asia, particularly Myanmar, Vietnam, and Malaysia. Very seldom, ทู้ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thu | Mongolia, Vietnam, United States, Myanmar, Malaysia |