Family name ทิตย์ (Thit 
, ทิตย์ ) , around the world, is a common cognomen. The family name ทิตย์ is habitual in South-eastern Asia, particularly Myanmar, where it is a common surname, Singapore, where it is a rare surname, and Malaysia. Not in comparison with a country's population, this name is the most popular in South-eastern Asia, particularly Myanmar, Indonesia, and Malaysia. Likewise, ทิตย์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thit | Laos, Thailand, Malaysia, Indonesia, Myanmar |
| ทิตย์ | Thailand |