Ildut

Ildut is a name of ancient Celtic origin, specifically associated with Brittany, a region in northwestern France with a strong Celtic heritage. The name is derived from the Old Breton elements 'ud' meaning 'lord' or 'chief' and 'tut' meaning 'people' or 'tribe'. It is most famously borne by Saint Ildut (also known as Illtud or Eltut), a prominent 5th or 6th-century Welsh abbot and saint who established a famous monastic school in Wales, often considered the first great center of learning in Britain. His influence extended across Wales and Brittany, solidifying the name's historical and religious significance.

The name's usage has historically been concentrated in Brittany and Wales, reflecting its deep roots in these Celtic lands. While never widely popular outside these regions, it has maintained a consistent, albeit niche, presence due to its connection to the revered saint. In modern times, it remains a distinctive choice, often favored by those with an appreciation for Celtic history and tradition.