Cognomen Яин (Iain 
, Jain 
, Yain ) , around the globe, is a prevalent surname. The family name Яин is habitual in India, where it is a common surname, United Arab Emirates, where it is quite a common surname, and Jersey (explore the name in all countries). Measured by absolute frequency, it is the most numerous in India, the United States, and Myanmar. Very seldom, Яин is the forename as well as the last name.