Last name Yaovalak (Yaovalak 
) , around the world, is an extremely rare family name. Much more prevalently, Yaovalak is the forename as well as the last name.
Suapa, Sroysoontorn, Booshabong, Kongniem, Kitipanya, Pechpakpisut, Deangnoi, Leardchanapornchai, Yangyuen, Surapakdee, Anantarug, Prompong-Satorn, Inthisane, Kornchatree, Ruchirapaiboon, Teerajetgul, Tipmontree, Udomsartporn, Akakulananta, Chantarabumroong, Sukkasem, Saisuwan, Yoosiri, Inthong, Jasas, Tawan, Saetan, Srinam, Srikum, Boonma, Ganjai, Foytong, Inkong, Theerakulchai, Watson, Suksong, Sornkom, Sjoberg, Kerdjan, Krudngoen, Phakmai, Russell, Langton, Leechon, Marerngsit, and Kanjanasomjai