Alys is a moderately popular girls' name in England & Wales, ranking #490 in 2025 with 81 recorded births. The name reached its all-time peak in 2013 with 100 births ranking #426. Since 1996, the popularity has increased by 65.3%. In 2025, approximately 1 in every 3,127 girls born was named Alys. STABLE Recent data shows the name is currently stable.