Jacub is a distinctive boys' name in United States, ranking #6188 in 2001 with 11 recorded births. The name reached its all-time peak in 2008 with 14 births ranking #6206. Since 1996, the popularity has increased by 57.1%. In 2001, approximately 1 in every 176,621 boys born was named Jacub. RISING Recent data shows the name is currently rising.