Around the world, สิทธิภัณฑ์ (สิทธิภัณฑ์ 
) is a very rare mostly male, but uncommonly girly first name. The first name สิทธิภัณฑ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare mostly masculine, but infrequently female name. Very seldom, สิทธิภัณฑ์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สิทธิภัณฑ์ | Thailand |