Family name คนไท (Kontai 
, คนไท ) , all over the world, is a very rare cognomen. The last name คนไท is characteristic of Japan, where it is a very rare surname, Greece, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Japan, Greece, and Germany. Also, คนไท is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kontai | Greece, Germany, Thailand, India, Japan |
| คนไท | Thailand |