Last name เรช (Ret 
, เรช 
) , in the world, is quite a rare family name. The cognomen เรช is characteristic of Myanmar, where it is a rare surname, Philippines, and Slovakia. Measured by absolute frequency, it most frequently occurs in South-eastern Asia, particularly Philippines, Myanmar, and Indonesia. Also, เรช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ret | Myanmar, Philippines, France, United States, Indonesia |
| เรช | Thailand |