Sydnee is a distinctive girls' name in United States, ranking #1419 in 2013 with 161 recorded births. The name reached its all-time peak in 2003 with 506 births ranking #549. Since 1996, the popularity has decreased by 43.7%. In 2013, approximately 1 in every 10,897 girls born was named Sydnee. FALLING Recent data shows the name is currently falling.