Surname Sumu (Sumu 
, سومو 
, Thumu 
) , globally, is quite a common family name. The last name Sumu is habitual in Bangladesh, where it is quite a rare surname, Sudan, where it is a rare surname, and United Arab Emirates. Not in comparison with a country's population, it is the most numerous in India, Bangladesh, and Sudan. Likewise, Sumu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sumu | Bangladesh, Malaysia, Turkey, India, Japan |
| سومو | Saudi Arabia, Iraq, Egypt, Sudan, Morocco |
| Thumu | Canada, India, United States, Democratic Republic of the Congo, South Africa |
| שומו | Israel |
|
aku sumu Finnish politician, FI (b. 1907) |
|
| ritva-liisa sumu Finnish journalist, FI (b. 1945) |
|