Jacolby is a distinctive boys' name in United States, ranking #3402 in 2007 with 32 recorded births. The name reached its all-time peak in 1999 with 68 births ranking #1597. Since 1996, the popularity has decreased by 27.3%. In 2007, approximately 1 in every 64,851 boys born was named Jacolby. STABLE Recent data shows the name is currently stable.