Ciaran is a distinctive boys' name in United States, ranking #1992 in 1998 with 48 recorded births. The name reached its all-time peak in 2025 with 105 births ranking #1609. Since 1996, the popularity has increased by 33.3%. In 1998, approximately 1 in every 39,819 boys born was named Ciaran. RISING Recent data shows the name is currently rising.