Family name ตาน (Tan 
, ตาน 
) , across the world, is a prevalent last name. The family name ตาน is habitual in Singapore, where it is a prevalent surname, Malaysia, where it is a widespread surname, and Bermuda (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in China, Malaysia, and Singapore. Very seldom, ตาน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tan | Malaysia, China, Indonesia, Philippines, Singapore |
| ตาน | Thailand |