Cain is a distinctive boys' name in United States, ranking #962 in 1996 with 133 recorded births. This places Cain in the top 9% of ranked US boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2014 with 330 births ranking #726. In 1996, approximately 1 in every 14,242 boys born was named Cain. FALLING Recent data shows the name is currently falling.