Cain is a distinctive boys' name in United States, ranking #751 in 2016 with 324 recorded births. This places Cain in the top 5% 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 143.6%. In 2016, approximately 1 in every 5,856 boys born was named Cain. FALLING Recent data shows the name is currently falling.