Josef is a distinctive boys' name in United States, ranking #1327 in 2010 with 129 recorded births. This places Josef in the top 9% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 220 births ranking #738. Since 1996, the popularity has decreased by 26.3%. In 2010, approximately 1 in every 14,871 boys born was named Josef. FALLING Recent data shows the name is currently falling.