Cognomen Krittinun (Krittinun 
) , across the world, is an extremely rare family name. Predominantly, Krittinun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Krittinun | Thailand |
Loikaew, Vorapongmooneekorn, Suwanpitak, Wiangwangchai, and Srichiangpin