Last name Gummai (Gummai 
) , all around the world, is a very rare surname. The family name Gummai is habitual in Thailand, where it is a very rare surname, Nigeria, and India, where it is an extremely rare surname. Very seldom, Gummai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gummai | Nigeria, India, Thailand |