Sydnee is a distinctive girls' name in United States, ranking #776 in 2006 with 356 recorded births. The name reached its all-time peak in 2003 with 506 births ranking #549. Since 1996, the popularity has increased by 24.5%. In 2006, approximately 1 in every 5,340 girls born was named Sydnee. FALLING Recent data shows the name is currently falling.