Surname Yotharak (Yotharak 
) , across the world, is a rare cognomen. The cognomen Yotharak is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
Anda, Paisarn, Prinrada, Piyawan, Dararat, Darawan, Jutapak, Saowalak, Saowaluk, Suneerat, Supaporn, Chanchai, Kandaphon, Kanticha, Kamonlux, Pajeerajit, Raktapha, Dareenat, Jutaporn, Teerawat, Nathanun, Nattawut, Patipon, Choosak, Chalard, Chanram, Ranu, Renu, Ariya, Akira, Karan, Marisa, Montri, Samorn, Sathit, Suwani, Nichapat, Soison, Parida, Panita, Ramida, Wallop, Montree, Sasawat, Sirinat, Sirilak, Suwanee, Somchit, Kirana, and Walailak