Cognomen 沙丁 (Sandin 
, 沙丁 
, Sardine 
) , in all the world, is quite a common surname. The family name 沙丁 is habitual in Saint Vincent and the Grenadines, where it is quite a common surname, Sweden, and Uruguay, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in Sweden, the United States, and Mexico. Very seldom, 沙丁 is the forename as well as the last name.