Jaicob is a distinctive boys' name in United States, ranking #7241 in 2012 with 11 recorded births. This places Jaicob in the bottom 49% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2016 with 15 births ranking #5896. In 2012, approximately 1 in every 172,420 boys born was named Jaicob. FALLING Recent data shows the name is currently falling.