Worldwide, เพ็ญกวิน (เพ็ญกวิน 
) is a very rare mostly feminine, but infrequently male forename. The forename เพ็ญกวิน is habitual in South-eastern Asia, particularly Thailand, where it is a very rare mostly female, but infrequently male name.
| VARIANT | COUNTRY |
|---|---|
| เพ็ญกวิน | Thailand |