Cognomen Вангай (Wangay 
, Вангай 
) , all around the world, is a very rare family name. The cognomen Вангай is habitual in Kazakhstan, where it is a rare surname, Kyrgyzstan, where it is a very rare surname, and Philippines, where it is an extremely rare surname. In absolute terms, this name is the most popular in Kazakhstan, Philippines, and India. Much less frequently, Вангай is the forename as well as the last name.