Family name Phatnarin (ภัทร์นรินทร์ 
, Phatnarin , ภัทรนรินทร์ ) , in all the world, is an extremely rare last name. The family name Phatnarin is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, Phatnarin is the forename as well as the last name.
Sukin, Fongwarin, Yodkhumluong, Chanpheng, Khamsaeng, Pankhunrak, Saengtongpraw, Tongchat, Khantayana, Prakobsang, Suwannarith, Kongsiriwatcharakul, Chirakhachonchai, Kasemsantnaayudthaya, Suphachattantiphong, Kiattanabodee, Suwannachairob, Joomprabut, Kraianurak, Hakan, Sookin, Srinan, Srisaysuk, Chailak, Phetwiwat, Jaroenrit, Narmsen, Sonthamart, Aiamsard, Chaichit, Chumprabut, Keatkeaw, Khamhome, Udmuangjai, and Jirarattanaporn