Jacolby is a distinctive boys' name in United States, ranking #1597 in 1999 with 68 recorded births. The name reached its all-time peak in 1999 with 68 births ranking #1597. Since 1996, the popularity has increased by 54.5%. In 1999, approximately 1 in every 28,237 boys born was named Jacolby. STABLE Recent data shows the name is currently stable.