Jacolby is a distinctive boys' name in United States, ranking #3620 in 2015 with 30 recorded births. The name reached its all-time peak in 1999 with 68 births ranking #1597. Since 1996, the popularity has decreased by 31.8%. In 2015, approximately 1 in every 63,875 boys born was named Jacolby. STABLE Recent data shows the name is currently stable.