Cognomen تسي (Tse 
, تسي 
) , all over the world, is a common family name. The cognomen تسي is characteristic of Hong Kong, where it is a widespread surname, Bermuda, where it is a common surname, and Cayman Islands (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Hong Kong, China, and the United States. Very seldom, تسي is the forename as well as the last name.