Cognomen Kritsanayut (Kritsanayut 
) , in all the world, is a very rare surname. The surname Kritsanayut is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Kritsanayut is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kritsanayut | Thailand |