Jan is a distinctive girls' name in United States, ranking #13948 in 2011 with 7 recorded births. The name reached its all-time peak in 1996 with 18 births ranking #5377. Since 1996, the popularity has decreased by 61.1%. In 2011, approximately 1 in every 251,258 girls born was named Jan. STABLE Recent data shows the name is currently stable.