Sydni is a distinctive girls' name in United States, ranking #1702 in 2007 with 129 recorded births. The name reached its all-time peak in 2000 with 468 births ranking #559. Since 1996, the popularity has decreased by 45.1%. In 2007, approximately 1 in every 14,903 girls born was named Sydni. RISING Recent data shows the name is currently rising.