Cognomen Sommatr (Sommatr 
) , around the globe, is an extremely rare last name. The last name Sommatr is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, Sommatr is the forename as well as the last name.
Maeha, Hreemsakul, Thepdecha, Wimolrat, Sangkatha, and Niramansakulpong