Cecilio is a distinctive boys' name in United States, ranking #5013 in 2011 with 18 recorded births. The name reached its all-time peak in 1998 with 39 births ranking #2280. Since 1996, the popularity has decreased by 33.3%. In 2011, approximately 1 in every 105,499 boys born was named Cecilio. FALLING Recent data shows the name is currently falling.