Celtic folklore encompasses the rich traditions, myths, and legends of the Celtic peoples, primarily from regions like Ireland, Scotland, Wales, and Brittany. It features a variety of supernatural beings, such as fairies, leprechauns, and selkies, who often interact with humans in both benevolent and mischievous ways. These stories reflect the values, beliefs, and cultural identity of the Celtic communities. The folklore also includes tales of heroic figures, such as Cú Chulainn and King Arthur, who embody bravery and honor. Many of these narratives are passed down through oral tradition, emphasizing the importance of storytelling in preserving history and cultural heritage.