Cognomen Katathikarn (Katathikarn 
) , around the world, is a very rare last name. The family name Katathikarn is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. More frequently, Katathikarn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Katathikarn | Thailand, United States |