Cognomen Mamoy (Mamoy 
, Мамои 
) , worldwide, is a rare family name. The last name Mamoy is habitual in Western Asia, particularly Armenia, where it is quite a rare surname, Iraq, where it is a rare surname, and Israel, where it is a very rare surname. Measured by absolute frequency, it is commonest in Indonesia, Iraq, and Russia. Also, Mamoy is the forename as well as the last name.