Secily is a distinctive girls' name in United States, ranking #17723 in 2018 with 5 recorded births. The name reached its all-time peak in 2008 with 9 births ranking #12420. Since 1996, the popularity has decreased by 16.7%. In 2018, approximately 1 in every 340,085 girls born was named Secily. FALLING Recent data shows the name is currently falling.