Fidencio is a distinctive boys' name in United States, ranking #2952 in 2001 with 31 recorded births. The name reached its all-time peak in 2001 with 31 births ranking #2952. Since 1996, the popularity has increased by 34.8%. In 2001, approximately 1 in every 62,672 boys born was named Fidencio. FALLING Recent data shows the name is currently falling.