Cognomen Rithy (ប៉ាន់ 
, Rithy 
, ريثي 
) , in the entire world, is a common family name. The surname Rithy is habitual in Cambodia, where it is a common surname, Malaysia, where it is a very rare surname, and Saudi Arabia. Much less frequently, Rithy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ប៉ាន់ | Cambodia |
| Rithy | Cambodia, France, United States, Thailand, Democratic Republic of the Congo |
| ريثي | Saudi Arabia |
| chhoen rithy Cambodian artist, KH (b. 1965) |
|