Siena is a distinctive girls' name in England & Wales, ranking #615 in 2006 with 54 recorded births. The name reached its all-time peak in 2013 with 102 births ranking #415. Since 1996, the popularity has increased by 440.0%. In 2006, approximately 1 in every 5,541 girls born was named Siena. RISING Recent data shows the name is currently rising.