Sydni is a distinctive girls' name in United States, ranking #787 in 2003 with 314 recorded births. The name reached its all-time peak in 2000 with 468 births ranking #559. Since 1996, the popularity has increased by 33.6%. In 2003, approximately 1 in every 5,819 girls born was named Sydni. RISING Recent data shows the name is currently rising.