Last name สมสนุก (สมสนุก 
, Somsanook 
, Somsanuk ) , in all the world, is a rare cognomen. The family name สมสนุก is habitual in Thailand, where it is quite a rare surname, and the United States, where it is an extremely rare surname. Very seldom, สมสนุก is the forename as well as the last name.