Ailbe of Emly was an early 6th-century Irish bishop and priest. Recognized as a significant pre-Patrician figure, he is celebrated as one of the four primary patron saints of Ireland. While historical details regarding his life remain limited, Irish traditions from the 8th century identify him as the first bishop and a patron of Emly in the Munster region. Later Welsh accounts even attempted to link his identity to Saint David, suggesting a connection to ancient Britain.