What does the name Sidney mean? The meaning of the name Sidney is Contraction Of St. Denys. The origin of the name Sidney is French. This is the culture in which the name originated, or in the case of a word, the language.
Alternate spellings: Sydnie, Cydnee
People who like the name Sidney also like: Oliver
, Lucas Audrey
Name Notes: Sidney Poitier, actor. Sidney Omarr, astrologer/columnist.