Sydni is a distinctive girls' name in United States, ranking #630 in 2001 with 399 recorded births. The name reached its all-time peak in 2000 with 468 births ranking #559. Since 1996, the popularity has increased by 69.8%. In 2001, approximately 1 in every 4,513 girls born was named Sydni. RISING Recent data shows the name is currently rising.