Cognomen Gapun (Gapun 
) , across the world, is a rare surname. The family name Gapun is habitual in South-eastern Asia, particularly Indonesia, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Very seldom, Gapun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gapun | India, Indonesia, Philippines |