Sydnee is a distinctive girls' name in United States, ranking #3079 in 2019 with 53 recorded births. The name reached its all-time peak in 2003 with 506 births ranking #549. Since 1996, the popularity has decreased by 81.5%. In 2019, approximately 1 in every 31,652 girls born was named Sydnee. FALLING Recent data shows the name is currently falling.