Family name Krittanai (Krittanai 
) , across the world, is an extremely rare surname. The family name Krittanai is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, Krittanai is the forename as well as the last name.
Arin, Pongharn, Ponpisit, Pisarnpong, Limjarern, Jaikanta, Thipprom, Tuksinamanee, Maneenual, Somkansamai, Srihengphaiboon, Chaikanta, Klangaran, Promwiharn, Limwongsin, Thongkorn, Nakpetpoon, Nirapaiwong, Vinitwattanakun, Bamrungchoo, Thaniyapol, Achariyasilp, Praiphiphat, Kitamnuaiphorn, Kuntheekan, Boonhere, Gosin, Tasom, Inwan, Khatti, Paisan, Pudmak, Utsaha, Saehong, Saechiw, Chomdoung, Rungsombatpornkul, Kaewkan, Kwunpang, Phetdet, Jedjinda, Namwong, Ngernyuang, Wangraha, Salikoopt, Suanngam, Chaisupa, Boripech, Kaewyot, and Wongbiasajj