Caolan is a distinctive boys' name in England & Wales, ranking #1538 in 2025 with 17 recorded births. The name reached its all-time peak in 2023 with 22 births ranking #1243. Since 1996, the popularity has increased by 21.4%. In 2025, approximately 1 in every 15,996 boys born was named Caolan. FALLING Recent data shows the name is currently falling.