Caileb is a distinctive boys' name in United States, ranking #7637 in 2014 with 10 recorded births. The name reached its all-time peak in 2009 with 18 births ranking #5130. Since 1996, the popularity has increased by 66.7%. In 2014, approximately 1 in every 192,044 boys born was named Caileb. FALLING Recent data shows the name is currently falling.