Ciaran is a distinctive boys' name in United States, ranking #2341 in 2000 with 41 recorded births. This places Ciaran in the top 19% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 105 births ranking #1609. Since 1996, the popularity has increased by 13.9%. In 2000, approximately 1 in every 47,901 boys born was named Ciaran. RISING Recent data shows the name is currently rising.