Surname Kuo-Tai (Kuo-Tai 
) , in the world, is an extremely rare family name. Much more prevalently, Kuo-Tai is the forename as well as the last name. Parts of the name also exists independently as a last name Kuo, and a last name Tai.
| VARIANT | COUNTRY |
|---|---|
| Kuo-Tai | Taiwan, Cayman Islands, United States |