Surname Thammarut (Thammarut 
) , worldwide, is a very rare cognomen. The last name Thammarut is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Thammarut is the forename as well as the last name.
Prasat, Aunmueang, Noosrikhong, Sanghirun, Chitawanich, Kongpetsak, Thanaphonlert, Chalermponphapa, Pattanaleesakul, and Thaisomboonsuk