Sydnee is a distinctive girls' name in United States, ranking #738 in 1996 with 286 recorded births. This places Sydnee in the top 5% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2003 with 506 births ranking #549. In 1996, approximately 1 in every 6,129 girls born was named Sydnee. FALLING Recent data shows the name is currently falling.