Sigifredo is a distinctive boys' name in United States, ranking #8813 in 2007 with 9 recorded births. This places Sigifredo in the bottom 39% 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. In 2007, approximately 1 in every 230,582 boys born was named Sigifredo. RISING Recent data shows the name is currently rising.