Cain is a moderately popular boys' name in England & Wales, ranking #351 in 1998 with 67 recorded births. The name reached its all-time peak in 2001 with 191 births ranking #184. Since 1996, the popularity has decreased by 19.3%. In 1998, approximately 1 in every 4,634 boys born was named Cain. STABLE Recent data shows the name is currently stable.