Last name ระยับ (Rayap 
, ระยับ ) , all around the world, is a rare family name. The family name ระยับ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, Indonesia, where it is a very rare surname, and Malaysia. Measured by absolute frequency, it is the most numerous in Indonesia, Thailand, and India. Likewise, ระยับ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rayap | Indonesia, India, Thailand, Malaysia |
| ระยับ | Thailand |