Cognomen ธนามัย (ธนามัย 
) , all over the world, is a very rare family name. The last name ธนามัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, ธนามัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ธนามัย | Thailand |