Surname ตนุ (Tanu 
, ตนุ ) , in the world, is a common family name. The family name ตนุ is habitual in Papua New Guinea, where it is quite a rare surname, Bangladesh, and Indonesia. Not in comparison with a country's population, the name is most common in Indonesia, Bangladesh, and India. More prevalently, ตนุ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tanu | India, Tanzania, Bangladesh, Thailand, Indonesia |
| ตนุ | Thailand |