Sydni is a distinctive girls' name in United States, ranking #738 in 2002 with 331 recorded births. The name reached its all-time peak in 2000 with 468 births ranking #559. Since 1996, the popularity has increased by 40.9%. In 2002, approximately 1 in every 5,428 girls born was named Sydni. RISING Recent data shows the name is currently rising.