Sydnee is a distinctive girls' name in United States, ranking #1255 in 2012 with 193 recorded births. The name reached its all-time peak in 2003 with 506 births ranking #549. Since 1996, the popularity has decreased by 32.5%. In 2012, approximately 1 in every 9,123 girls born was named Sydnee. FALLING Recent data shows the name is currently falling.