Ailsa is a distinctive girls' name in England & Wales, ranking #1484 in 2013 with 21 recorded births. The name reached its all-time peak in 1998 with 41 births ranking #619. Since 1996, the popularity has decreased by 38.2%. In 2013, approximately 1 in every 14,688 girls born was named Ailsa. STABLE Recent data shows the name is currently stable.