Cecilio is a distinctive boys' name in United States, ranking #5600 in 2009 with 16 recorded births. The name reached its all-time peak in 1998 with 39 births ranking #2280. Since 1996, the popularity has decreased by 40.7%. In 2009, approximately 1 in every 123,957 boys born was named Cecilio. FALLING Recent data shows the name is currently falling.