Jacub is a distinctive boys' name in United States, ranking #6019 in 2003 with 12 recorded births. The name reached its all-time peak in 2008 with 14 births ranking #6206. Since 1996, the popularity has increased by 71.4%. In 2003, approximately 1 in every 164,606 boys born was named Jacub. RISING Recent data shows the name is currently rising.