Jak is a moderately popular boys' name in England & Wales, ranking #249 in 1998 with 117 recorded births. The name reached its all-time peak in 2002 with 159 births ranking #212. Since 1996, the popularity has increased by 14.7%. In 1998, approximately 1 in every 2,654 boys born was named Jak. STABLE Recent data shows the name is currently stable.