Siena is a distinctive girls' name in England & Wales, ranking #549 in 2015 with 79 recorded births. The name reached its all-time peak in 2013 with 102 births ranking #415. Since 1996, the popularity has increased by 690.0%. In 2015, approximately 1 in every 3,898 girls born was named Siena. RISING Recent data shows the name is currently rising.