In the world, เพ็ญโสม (เพ็ญโสม 
) is a very rare primarily female, but very infrequently male forename. The first name เพ็ญโสม is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare primarily girly, but very infrequently male name. Very seldom, เพ็ญโสม is the last name as well as the forename.