Cognomen ริจิรานุวัตร (ริจิรานุวัตร 
, Rijiranuwat 
) , in the world, is a very rare last name. The cognomen ริจิรานุวัตร is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ริจิรานุวัตร | Thailand |
| Rijiranuwat | United States, Thailand |