Last name ไรส์ (Rai 
, ไรส์ 
) , all around the world, is a prevalent cognomen. The cognomen ไรส์ is characteristic of Bhutan, where it is a prevalent surname, Nepal, and Qatar, where it is a widespread surname (explore the name in all countries). Measured by absolute frequency, it is the most numerous in India, Nepal, and Saudi Arabia. Much less frequently, ไรส์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rai | Malaysia, Saudi Arabia, Nepal, India, Indonesia |
| ไรส์ | Thailand |