Cognomen Vilaylak (Vilaylak 
) , all over the world, is a very rare family name. The surname Vilaylak is characteristic of France, where it is an extremely rare surname, and the United States. More prevalently, Vilaylak is the forename as well as the last name.
Lak, Sisawath, Phavongxa, Ounnalath, Mekmorakoth, Phavongxay, Luangrath, Phomsouvanh, and Pathammavong