Aos Sí fairies

Aos Sí: Irish Fairy Folk Mythology Explained

The Aos Sí, often called the fairy folk, are central to Irish and wider Celtic tradition, where they are linked to ancient mounds, hollow hills, and other liminal places. Far from the modern image of tiny winged creatures, they appear in older lore as an otherworldly people whose origins, powers, and place in folklore invite closer study.