Sianni is a distinctive girls' name in United States, ranking #8181 in 2006 with 15 recorded births. The name reached its all-time peak in 2025 with 128 births ranking #1629. Since 1996, the popularity has increased by 114.3%. In 2006, approximately 1 in every 126,738 girls born was named Sianni. RISING Recent data shows the name is currently rising.