Surname Panyavong (Panyavong 
) , in all the world, is a rare last name. The family name Panyavong is characteristic of Laos, where it is quite a rare surname, the United States, where it is a very rare surname, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Laos, the United States, and Thailand. Very seldom, Panyavong is the forename as well as the last name.