Family name 迪西 (Deasy 
, Deacy , 迪西 
) , worldwide, is quite a common surname. The cognomen 迪西 is habitual in Ireland, where it is quite a common surname, Indonesia, where it is quite a rare surname, and Albania, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Indonesia, Ireland, and the United States. More frequently, 迪西 is the forename as well as the last name.