Caileb is a distinctive boys' name in United States, ranking #12332 in 2020 with 5 recorded births. This places Caileb in the bottom 12% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2009 with 18 births ranking #5130. Since 1996, the popularity has decreased by 16.7%. In 2020, approximately 1 in every 345,013 boys born was named Caileb. FALLING Recent data shows the name is currently falling.