Jahn is a distinctive boys' name in United States, ranking #7923 in 1998 with 7 recorded births. This places Jahn in the bottom 30% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 16 births ranking #5134. In 1998, approximately 1 in every 273,045 boys born was named Jahn. RISING Recent data shows the name is currently rising.