Demi-Leigh is a distinctive girls' name in England & Wales, ranking #3705 in 2025 with 6 recorded births. The name reached its all-time peak in 2005 with 120 births ranking #336. Since 1996, the popularity has decreased by 84.6%. In 2025, approximately 1 in every 42,214 girls born was named Demi-Leigh. FALLING Recent data shows the name is currently falling.