Jan is a moderately popular boys' name in England & Wales, ranking #472 in 2006 with 66 recorded births. The name reached its all-time peak in 2017 with 238 births ranking #226. Since 1996, the popularity has increased by 214.3%. In 2006, approximately 1 in every 4,854 boys born was named Jan. FALLING Recent data shows the name is currently falling.