Cecily is a distinctive girls' name in United States, ranking #1176 in 2015 with 214 recorded births. The name reached its all-time peak in 2014 with 244 births ranking #1061. Since 1996, the popularity has increased by 62.1%. In 2015, approximately 1 in every 8,340 girls born was named Cecily. RISING Recent data shows the name is currently rising.