Fidencio is a distinctive boys' name in United States, ranking #3173 in 2000 with 27 recorded births. The name reached its all-time peak in 2001 with 31 births ranking #2952. Since 1996, the popularity has increased by 17.4%. In 2000, approximately 1 in every 72,738 boys born was named Fidencio. FALLING Recent data shows the name is currently falling.