Sigifredo is a distinctive boys' name in United States, ranking #5262 in 2000 with 14 recorded births. This places Sigifredo in the top 43% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 19 births ranking #3824. Since 1996, the popularity has increased by 40.0%. In 2000, approximately 1 in every 140,281 boys born was named Sigifredo. RISING Recent data shows the name is currently rising.