Family name Kupat (Kupat 
) , all over the world, is a rare cognomen. The surname Kupat is habitual in South-eastern Asia, particularly Indonesia, where it is a very rare surname, Thailand, and Malaysia. In absolute terms, it is commonest in Indonesia, India, and Thailand. Also, Kupat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kupat | Philippines, Thailand, India, Indonesia, Malaysia |