Siena is a distinctive girls' name in England & Wales, ranking #996 in 2003 with 24 recorded births. The name reached its all-time peak in 2013 with 102 births ranking #415. Since 1996, the popularity has increased by 140.0%. In 2003, approximately 1 in every 11,611 girls born was named Siena. RISING Recent data shows the name is currently rising.