Last name ทะนุ (Thanu 
, ทะนุ ) , throughout the world, is quite a rare cognomen. The last name ทะนุ is habitual in Qatar, where it is quite a common surname, Sri Lanka, where it is quite a rare surname, and United Arab Emirates. Measured by absolute frequency, this name is the most popular in Sri Lanka, India, and Qatar. More prevalently, ทะนุ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thanu | Thailand, Saudi Arabia, India, Sri Lanka, Qatar |
| ทะนุ | Thailand |