Globally, Sumu (Sumu 
, سومو 
, Thumu 
) is quite a rare gender-neutral forename. The first name Sumu is characteristic of Sudan, where it is a rare feminine name, Saudi Arabia, where it is a rare gender-neutral name, and Bangladesh. In absolute terms, it is the most numerous in India, Bangladesh, and Sudan. Also, Sumu is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sumu | Japan, Turkey, Malaysia, India, Bangladesh |
| سومو | Saudi Arabia, Sudan, Morocco, Egypt, Iraq |
| Thumu | South Africa, United States, India, Canada, Democratic Republic of the Congo |
| שומו | Israel |