Meaning and name origin
Sidney \s(i)-dney, sid-ney\ as a boy's name (also used as girl's name Sidney), is pronounced SID-nee. It is of Old English origin, and the meaning of Sidney is "wide meadow". Also possibly from the Norman French place name Saint Denis. Used as given name in the 18th century and popular in the 19th. Sidney is favored for boys; Sydney is almost entirely used for girls. See also Cydney. Author Sidney Sheldon; film director Sydney Pollack; actor Sidney Poiter.
There is 1 feminine form of Sidney: Sydney.
Sidney is a very popular first name for males (#274 out of 1220, Top 22%) and also a very popular surname or last name for all people (#10979 out of 88799, Top 12%) (2000 U.S. Census).
Displayed below is the baby name popularity of the name Sidney for boys. Sidney reached its highest rank of #94 in the U.S. in 1910-1919. (2014 statistics).