Cainan is a distinctive boys' name in United States, ranking #3505 in 1998 with 21 recorded births. The name reached its all-time peak in 2016 with 47 births ranking #2632. Since 1996, the popularity has increased by 90.9%. In 1998, approximately 1 in every 91,015 boys born was named Cainan. RISING Recent data shows the name is currently rising.