Globally, พัจนา (พัจนา 
) is a very rare primarily female, but very infrequently male given name. The forename พัจนา is habitual in South-eastern Asia, particularly Thailand, where it is a very rare predominantly feminine, but very infrequently male name. More frequently, พัจนา is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| พัจนา | Thailand |