Surname Бэй (Bei 
, Bay 
, Бэй 
) , all over the world, is a widespread family name. The last name Бэй is habitual in Denmark, where it is quite a common surname, Singapore, and Turkey (explore the name in all countries). In absolute terms, it is the most numerous in China, Turkey, and Japan. Very seldom, Бэй is the forename as well as the last name.