Surname រីទ្ធី (រីទ្ធី 
) , all around the world, is an extremely rare last name. The last name រីទ្ធី is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. More frequently, រីទ្ធី is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| រីទ្ធី | Cambodia |