Cecillia is a distinctive girls' name in United States, ranking #9509 in 2001 with 10 recorded births. The name reached its all-time peak in 2007 with 20 births ranking #6609. Since 1996, the popularity has increased by 66.7%. In 2001, approximately 1 in every 180,056 girls born was named Cecillia. RISING Recent data shows the name is currently rising.