Family name 沙因 (Shain 
, Schein 
, Schain 
) , all over the world, is a common surname. The family name 沙因 is characteristic of Aland Islands, where it is quite a common surname, Maldives, and North Macedonia, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Myanmar, the United States, and Germany. Also, 沙因 is the forename as well as the last name.