Cognomen Thá (Thá 
) , worldwide, is a very rare last name. The surname Thá is characteristic of Myanmar, where it is a rare surname, Vietnam, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Likewise, Thá is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thá | Vietnam, Myanmar, Brazil |