Surname Sornchai (ศรชัย 
, Sornchai 
, Surnchai) , across the world, is quite a rare last name. The last name Sornchai is habitual in Thailand, where it is quite a rare surname, Norway, where it is a very rare surname, and the United States, where it is an extremely rare surname. More prevalently, Sornchai is the forename as well as the last name.