Across the world, ดอ (Do 
, ดอ 
) is a common epicene forename. The given name ดอ is habitual in Macao, where it is quite a common gender-neutral name, Egypt, where it is quite a common dominantly female, but seldom masculine name, and Vietnam, where it is quite a rare gender-neutral name. Measured by absolute frequency, it is commonest in Egypt, India, and Vietnam. Also, ดอ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Do | Myanmar, Vietnam, Egypt, United States, India |
| ดอ | Thailand |
ดอ is also a name for the fictitious and mythical characters: Do Contra .