Surname Somtavin (Somtavin 
) , in all the world, is an extremely rare cognomen. The last name Somtavin is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, Somtavin is the forename as well as the last name.
Bowrai, Charoensap, Suwanpimon, Chaisaming, Sangthonluon, Wonggrapan, Thongpan, Thongnasan, Chanvijit, Suksamniang, Tiamdow, Tiamdao, Lohvanichai, Kraemer, Pumala, Chanphum, and Nantaviriyanon