Jan is a distinctive girls' name in United States, ranking #7735 in 1998 with 12 recorded births. The name reached its all-time peak in 1996 with 18 births ranking #5377. Since 1996, the popularity has decreased by 33.3%. In 1998, approximately 1 in every 147,241 girls born was named Jan. STABLE Recent data shows the name is currently stable.