Jacolby is a distinctive boys' name in United States, ranking #3200 in 2011 with 35 recorded births. The name reached its all-time peak in 1999 with 68 births ranking #1597. Since 1996, the popularity has decreased by 20.5%. In 2011, approximately 1 in every 54,257 boys born was named Jacolby. STABLE Recent data shows the name is currently stable.