Last name ศรีสมเพช (ศรีสมเพช 
, Sisomphet 
) , around the world, is a very rare family name. The cognomen ศรีสมเพช is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname. Very seldom, ศรีสมเพช is the forename as well as the last name.