Cainen is a distinctive boys' name in United States, ranking #7274 in 2025 with 11 recorded births. The name reached its all-time peak in 2017 with 50 births ranking #2536. Since 1996, the popularity has increased by 83.3%. In 2025, approximately 1 in every 155,280 boys born was named Cainen. RISING Recent data shows the name is currently rising.