Globally, เพ็ชรรินทร์ (เพ็ชรรินทร์ 
) is a very rare mostly girly, but infrequently masculine forename. The first name เพ็ชรรินทร์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare largely feminine, but infrequently male name. Likewise, เพ็ชรรินทร์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| เพ็ชรรินทร์ | Thailand |