Last name ร่ำรวย (Riche 
, Richit 
, Richare 
) , all over the world, is a common family name. The last name ร่ำรวย is habitual in Jersey, where it is quite a common surname, Mauritius, where it is quite a rare surname, and France. Not in comparison with a country's population, it most frequently occurs in France, the United States, and Algeria. More prevalently, ร่ำรวย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riche | Philippines, France, United States, Democratic Republic of the Congo, Algeria |
| Richit | Philippines, France, Brazil, United States, Democratic Republic of the Congo |
| Richare | Peru, Philippines, France, United States, Nigeria |