Family name Kallong (Kallong 
) , all around the world, is a very rare cognomen. The family name Kallong is habitual in Philippines, where it is a very rare surname, Indonesia, and India, where it is an extremely rare surname. Much less frequently, Kallong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kallong | Philippines, Thailand, India, United States, Indonesia |