Cognomen Layanun (Layanun 
) , around the world, is a very rare family name. The family name Layanun is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Layanun is the forename as well as the last name.
Vivit, Vitet, Vijai, Vvilawan, Sirapat, Pinarat, Vilawan, Vichaya, Jittraporn, and Theerathep