Celyn is a distinctive boys' name in England & Wales, ranking #2952 in 2025 with 7 recorded births. The name reached its all-time peak in 2023 with 13 births ranking #1800. Since 1996, the popularity has increased by 133.3%. In 2025, approximately 1 in every 38,848 boys born was named Celyn. FALLING Recent data shows the name is currently falling.