Sienna-Leigh is a distinctive girls' name in England & Wales, ranking #3333 in 2025 with 7 recorded births. This places Sienna-Leigh in the top 44% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2017 with 12 births ranking #2201. In 2025, approximately 1 in every 36,183 girls born was named Sienna-Leigh. RISING Recent data shows the name is currently rising.