Ailsa is a distinctive girls' name in England & Wales, ranking #1343 in 2018 with 24 recorded births. The name reached its all-time peak in 1998 with 41 births ranking #619. Since 1996, the popularity has decreased by 29.4%. In 2018, approximately 1 in every 12,011 girls born was named Ailsa. STABLE Recent data shows the name is currently stable.