Sydnee is a distinctive girls' name in United States, ranking #659 in 2002 with 386 recorded births. The name reached its all-time peak in 2003 with 506 births ranking #549. Since 1996, the popularity has increased by 35.0%. In 2002, approximately 1 in every 4,655 girls born was named Sydnee. FALLING Recent data shows the name is currently falling.