Cognomen Mashuk (Mashuk 
, Машук 
) , globally, is quite a rare surname. The cognomen Mashuk is habitual in Belarus, where it is quite a rare surname, Bangladesh, and Oman, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Bangladesh, India, and Belarus. More frequently, Mashuk is the forename as well as the last name.