Cognomen Napuk (Napuk 
) , in all the world, is a very rare surname. The family name Napuk is habitual in the United Kingdom, where it is a very rare surname, Thailand, where it is an extremely rare surname, and the United States. More prevalently, Napuk is the forename as well as the last name.
Runknithichakul, Smoraphum, Reakharuchi, Daungeiad, Darasoon, Tungsaro, Chewpreecha, Rungnithichakul, Watanakun, Wongsopar, Mongkolsaen, and Rattanajit