Cognomen Bains (班 , Bains , بينز ) , in all the world, is a widespread surname. The family name Bains is habitual in United Arab Emirates, where it is quite a common surname, China, where it is quite a rare surname, and Canada. Not in comparison with a country's population, it most frequently occurs in China, India, and the United Kingdom. Much less frequently, Bains is the forename as well as the last name.