what does the name sydni mean
Sydni /syd-ni/ [2 sylls.] as a girls' name. Sydni's name origin is Old English, and the meaning of the name Sydni is wide island.Sydni is an alternate spelling of Sydney (Old English). Also possibly place name: Saint Denis. Compare surname Sayani.ydni is an unusual first name for females. Sydni is an unusual surname too for both adults and children. (2000 U.S. Census). Displayed below is the birth name popularity of Sydni for girls. Sydni entered the list in 1995 and reached its highest rank of #559 in the U.S. in 2000, but is not in the list at the moment.