Updated June 9, 2019 Share: Girl name origins & meanings Greek : A public hill Boy name origins & meanings Greek : Public hill; variation on SydneyFrench : From Saint-Denis, France Boy name variations Cydney Cydney - 24% this year Neutral Rare Find out more Sid Sid - 25% this year Neutral Rare Find out more Sidd Sidd 0 % this year Masculine Rare Find out more Siddie Siddie 0 % this year Neutral Rare Find out more Siddy Siddy 0 % this year Masculine Rare Find out more Syd Syd 0 % this year Neutral Rare Find out more Sydd Sydd 0 % this year Masculine Rare Find out more How Popular Is The Name Cyd