Cognomen Så (So 
, Sá 
, Så 
) , all over the world, is a widespread surname. The cognomen Så is habitual in Hong Kong, where it is a widespread surname, British Virgin Islands, where it is a common surname, and Cayman Islands (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Hong Kong, Egypt, and China. Also, Så is the forename as well as the last name.