Ciaran is a distinctive boys' name in United States, ranking #2124 in 2001 with 49 recorded births. The name reached its all-time peak in 2025 with 105 births ranking #1609. Since 1996, the popularity has increased by 36.1%. In 2001, approximately 1 in every 39,650 boys born was named Ciaran. RISING Recent data shows the name is currently rising.