Cognomen រ៉ូសាត (រ៉ូសាត 
) , in the entire world, is an extremely rare last name. The surname រ៉ូសាត is characteristic of South-eastern Asia, particularly Cambodia, where it is a very rare surname. More prevalently, រ៉ូសាត is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| រ៉ូសាត | Cambodia |