Surname Mankous (Манкус 
, Mankous) , around the world, is a very rare cognomen. The family name Mankous is habitual in Belarus, where it is a rare surname, Ukraine, where it is a very rare surname, and Kazakhstan. Measured by absolute frequency, it is the most numerous in Eastern Europe, particularly Russia, Belarus, and Ukraine. Much less frequently, Mankous is the forename as well as the last name.