Surname Phonvilay (Phonvilay 
) , in the world, is a very rare cognomen. The surname Phonvilay is characteristic of Laos, where it is quite a rare surname, and the United States, where it is an extremely rare surname. More frequently, Phonvilay is the forename as well as the last name.
Kham-Avone, Glasper, Sayaphet, Keosipaseuth, Keungkhamphong, Khamavone, Meuangmany, Sengvilay, Sitthisane, Sithiphong, Sounthonnavong, Phonpaseuth, and Phommathirat