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In the world, Siddha (Siddha
, สิทธา
, सिद्ध) is quite a common dominantly masculine, but uncommonly girly first name. The given name Siddha is characteristic of Thailand, where it is quite a rare predominantly boy's, but very seldom feminine name, India, where it is a rare gender-neutral name, and Indonesia, where it is a very rare boy's name. Also, Siddha is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Siddha | Bangladesh, India, Nepal, Indonesia, Thailand |
| สิทธา | Thailand |