Cognomen Nhoi (นอย 
, Nhoi 
) , all around the world, is a rare family name. The surname Nhoi is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, Vietnam, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Thailand, Vietnam, and India. Much more frequently, Nhoi is the forename as well as the last name.