Family name 莫纳斯 (Monas 
, 莫纳斯 
) , in the world, is quite a rare cognomen. The cognomen 莫纳斯 is habitual in Croatia, where it is quite a rare surname, Greece, where it is a rare surname, and Tanzania. Measured by absolute frequency, it most frequently occurs in Indonesia, Pakistan, and the United States. Also, 莫纳斯 is the forename as well as the last name.