Cognomen Rujirapan (Rujirapan 
) , all over the world, is a very rare last name. The cognomen Rujirapan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Rujirapan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rujirapan | Thailand |