Ailsa is a distinctive girls' name in United States, ranking #6495 in 1999 with 15 recorded births. The name reached its all-time peak in 2003 with 19 births ranking #6061. Since 1996, the popularity has increased by 36.4%. In 1999, approximately 1 in every 118,252 girls born was named Ailsa. FALLING Recent data shows the name is currently falling.