Worldwide, ธันยสิทธิ์ (ธันยสิทธิ์ 
) is a very rare dominantly male, but infrequently feminine forename. The first name ธันยสิทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare mostly boy's, but seldom girly name. Much less frequently, ธันยสิทธิ์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| ธันยสิทธิ์ | Thailand |
ศูระศรางศุ์, and อินมอน