Sienna is a highly popular girls' name in England & Wales, ranking #12 in 2022 with 1,859 recorded births. The name reached its all-time peak in 2013 with 2,211 births ranking #22. Since 1996, the popularity has increased by 8,752.4%. In 2022, approximately 1 in every 142 girls born was named Sienna. FALLING Recent data shows the name is currently falling.