Cecily is a distinctive girls' name in United States, ranking #1510 in 1998 with 112 recorded births. The name reached its all-time peak in 2014 with 244 births ranking #1061. Since 1996, the popularity has decreased by 15.2%. In 1998, approximately 1 in every 15,776 girls born was named Cecily. RISING Recent data shows the name is currently rising.