Cognomen Janyaruk (Janyaruk 
) , around the world, is an extremely rare surname. The last name Janyaruk is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Predominantly, Janyaruk is the forename as well as the last name.
Pupat, Photongngam, Choobuakhaw, Sanguansak, Tangsukchaloenkul, Ratchasopha, Satsavira, Wongjanma, Rujinunsakul, Prapankul, Popijan, Pongpom, Suriyut, Towton, Roipia, Poopat, Tangsukcharoenkul, and Sincharoenpokai