Cognomen Gunil (Gunil 
, กุลนิล 
) , throughout the world, is a rare last name. The cognomen Gunil is characteristic of Thailand, where it is a rare surname, Israel, where it is a very rare surname, and Mexico, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Thailand, India, and Mexico. Likewise, Gunil is the forename as well as the last name.