Cecily is a distinctive girls' name in England & Wales, ranking #514 in 2025 with 78 recorded births. The name reached its all-time peak in 2025 with 78 births ranking #514. Since 1996, the popularity has increased by 271.4%. In 2025, approximately 1 in every 3,247 girls born was named Cecily. RISING Recent data shows the name is currently rising.