Around the globe, Sumrej (Sumrej 
) is an extremely rare boy's first name. Much less frequently, Sumrej is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sumrej | United States, Thailand |
Ahmad, Srirai, Makprasit, Petchakan, Distanont, Jitprapan, Bunnachaisirisuk, and Klinkhajorn