Gwydion is a distinctive boys' name in England & Wales, ranking #4275 in 2025 with 4 recorded births. The name reached its all-time peak in 2024 with 10 births ranking #2264. Since 1996, the popularity has decreased by 20.0%. In 2025, approximately 1 in every 67,984 boys born was named Gwydion. RISING Recent data shows the name is currently rising.