Ailsa is a distinctive girls' name in England & Wales, ranking #1703 in 2019 with 17 recorded births. The name reached its all-time peak in 1998 with 41 births ranking #619. Since 1996, the popularity has decreased by 50.0%. In 2019, approximately 1 in every 16,473 girls born was named Ailsa. STABLE Recent data shows the name is currently stable.