Cecily is a distinctive girls' name in United States, ranking #2031 in 2010 with 98 recorded births. The name reached its all-time peak in 2014 with 244 births ranking #1061. Since 1996, the popularity has decreased by 25.8%. In 2010, approximately 1 in every 18,136 girls born was named Cecily. RISING Recent data shows the name is currently rising.