Last name Amuy (Amuy 
) , worldwide, is a rare cognomen. The family name Amuy is habitual in Latin America and the Caribbean, particularly Costa Rica, where it is quite a rare surname, Argentina, where it is a rare surname, and Peru, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Indonesia, Brazil, and Costa Rica. Also, Amuy is the forename as well as the last name.