Cecily is a distinctive girls' name in United States, ranking #1848 in 2003 with 100 recorded births. The name reached its all-time peak in 2014 with 244 births ranking #1061. Since 1996, the popularity has decreased by 24.2%. In 2003, approximately 1 in every 18,271 girls born was named Cecily. RISING Recent data shows the name is currently rising.