Family name Байн (Bain 
, Bayn 
, Bajn 
) , in the entire world, is a common surname. The cognomen Байн is habitual in Latin America and the Caribbean, particularly Bahamas, where it is a common surname, Grenada, and Trinidad and Tobago, where it is quite a common surname (explore the name in all countries). In absolute terms, the name is most common in India, the United States, and the United Kingdom. Much less frequently, Байн is the forename as well as the last name.