In the entire world, ธาน (Than 
, Thanan 
, Thathan 
) is a widespread epicene first name. The given name ธาน is habitual in Mongolia, where it is a prevalent unisex name, Macao, where it is quite a common gender-neutral name, and Myanmar, where it is quite a rare largely masculine, but infrequently feminine name. Measured by absolute frequency, it is the most numerous in Mongolia, India, and Myanmar. Also, ธาน is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Than | Myanmar, Vietnam, India, Mongolia, Malaysia |
| Thanan | Myanmar, Thailand, United States, India, Malaysia |
| Thathan | Myanmar, South Africa, Thailand, India, Malaysia |
| ธาน | Thailand |
จงบริบูรณ์, and บุญสาระวัง