This name was fairly popular at the end of the 19th century and beginning of the 20th. The American author F. Scott Fitzgerald used it for the character of Daisy Buchanan in The Great Gatsby (1925). The Walt Disney cartoon character Daisy Duck was created in 1940 as the girlfriend of Donald Duck. It was at a low in popularity in the United States in the 1970s when it got a small boost from a character on the television series The Dukes of Hazzard in 1979.
As an English name it can also derive from the month of August, which was named for the Roman emperor Augustus.