Surname Bych (Bych 
, Бич 
, Быч ) , throughout the world, is quite a rare family name. The last name Bych is characteristic of Belarus, where it is quite a rare surname, Ukraine, where it is a rare surname, and Kazakhstan. In absolute terms, it is commonest in Eastern Europe, particularly Russia, Belarus, and Ukraine. Much less frequently, Bych is the forename as well as the last name.