Sydni is a distinctive girls' name in United States, ranking #1330 in 2006 with 176 recorded births. The name reached its all-time peak in 2000 with 468 births ranking #559. Since 1996, the popularity has decreased by 25.1%. In 2006, approximately 1 in every 10,802 girls born was named Sydni. RISING Recent data shows the name is currently rising.