>
In the entire world, คำเพ็ญ (Pen , Khampen , Khamphen ) is quite a rare epicene first name. The first name คำเพ็ญ is characteristic of Hong Kong, where it is quite a rare epicene name, United Arab Emirates, where it is a rare gender-neutral name, and Indonesia. Measured by absolute frequency, it is commonest in Indonesia, India, and the Democratic Republic of the Congo. Likewise, คำเพ็ญ is the last name as well as the forename.
คำเพ็ญ is also a name for the fictitious and mythical characters: Pen Gwyn , the red-white-and-green penguin mascot of Urdd Gobaith Cymru.