Cecillia is a distinctive girls' name in United States, ranking #8966 in 2002 with 11 recorded births. The name reached its all-time peak in 2007 with 20 births ranking #6609. Since 1996, the popularity has increased by 83.3%. In 2002, approximately 1 in every 163,347 girls born was named Cecillia. RISING Recent data shows the name is currently rising.