Surname Regah (Regah 
) , across the world, is a rare family name. The surname Regah is characteristic of Indonesia, where it is a very rare surname, Israel, and Canada, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Indonesia, India, and Israel. Very seldom, Regah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Regah | Indonesia, Philippines, Nigeria, United States, India |