Cecily is a distinctive girls' name in United States, ranking #1914 in 2005 with 101 recorded births. The name reached its all-time peak in 2014 with 244 births ranking #1061. Since 1996, the popularity has decreased by 23.5%. In 2005, approximately 1 in every 18,294 girls born was named Cecily. RISING Recent data shows the name is currently rising.