Cecily is a distinctive girls' name in United States, ranking #1244 in 2017 with 191 recorded births. The name reached its all-time peak in 2014 with 244 births ranking #1061. Since 1996, the popularity has increased by 44.7%. In 2017, approximately 1 in every 9,036 girls born was named Cecily. RISING Recent data shows the name is currently rising.