Cognomen 塞恩 (Sain 
, Thain 
, Senn ) , all over the world, is a widespread last name. The last name 塞恩 is characteristic of Liechtenstein, where it is quite a common surname, Switzerland, and Myanmar (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in India, the United States, and Myanmar. Very seldom, 塞恩 is the forename as well as the last name.