Sydnee is a distinctive girls' name in United States, ranking #1034 in 2011 with 241 recorded births. The name reached its all-time peak in 2003 with 506 births ranking #549. Since 1996, the popularity has decreased by 15.7%. In 2011, approximately 1 in every 7,298 girls born was named Sydnee. FALLING Recent data shows the name is currently falling.