Cain is a distinctive boys' name in United States, ranking #792 in 2013 with 285 recorded births. This places Cain in the top 6% 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. Since 1996, the popularity has increased by 114.3%. In 2013, approximately 1 in every 6,636 boys born was named Cain. FALLING Recent data shows the name is currently falling.