Cognomen بیک (Beyk 
, بیک 
) , in the world, is quite a rare surname. The cognomen بیک is habitual in Afghanistan, where it is quite a rare surname, Iran, where it is a rare surname, and Netherlands. Measured by absolute frequency, it is the most numerous in Afghanistan, Iran, and Saudi Arabia. Much less frequently, بیک is the forename as well as the last name.