Jan is a moderately popular boys' name in England & Wales, ranking #303 in 2011 with 147 recorded births. This places Jan in the top 5% of ranked UK boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2017 with 238 births ranking #226. Since 1996, the popularity has increased by 600.0%. In 2011, approximately 1 in every 2,353 boys born was named Jan. FALLING Recent data shows the name is currently falling.