Cain is a moderately popular boys' name in England & Wales, ranking #312 in 2006 with 112 recorded births. The name reached its all-time peak in 2001 with 191 births ranking #184. Since 1996, the popularity has increased by 34.9%. In 2006, approximately 1 in every 2,860 boys born was named Cain. STABLE Recent data shows the name is currently stable.