Cecily is a distinctive girls' name in England & Wales, ranking #637 in 2015 with 65 recorded births. The name reached its all-time peak in 2025 with 78 births ranking #514. Since 1996, the popularity has increased by 209.5%. In 2015, approximately 1 in every 4,737 girls born was named Cecily. RISING Recent data shows the name is currently rising.