Family name ซ้ง (Song 
, ซ้ง) , throughout the world, is a prevalent cognomen. The cognomen ซ้ง is characteristic of China, where it is a common surname, Cayman Islands, and Bermuda (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in China, Malaysia, and the United States. Very seldom, ซ้ง is the forename as well as the last name.