Cecilio is a distinctive boys' name in United States, ranking #2805 in 1999 with 30 recorded births. The name reached its all-time peak in 1998 with 39 births ranking #2280. Since 1996, the popularity has increased by 11.1%. In 1999, approximately 1 in every 64,003 boys born was named Cecilio. FALLING Recent data shows the name is currently falling.