Jacolby is a distinctive boys' name in United States, ranking #2643 in 2003 with 38 recorded births. The name reached its all-time peak in 1999 with 68 births ranking #1597. Since 1996, the popularity has decreased by 13.6%. In 2003, approximately 1 in every 51,981 boys born was named Jacolby. STABLE Recent data shows the name is currently stable.