Sydni is a distinctive girls' name in United States, ranking #1931 in 2009 with 109 recorded births. The name reached its all-time peak in 2000 with 468 births ranking #559. Since 1996, the popularity has decreased by 53.6%. In 2009, approximately 1 in every 16,852 girls born was named Sydni. RISING Recent data shows the name is currently rising.