Säckingen Abbey is a former Roman Catholic abbey located in Bad Säckingen , Baden-Württemberg in Germany. The Abbey was founded in the 6th or 7th century by Fridolin of Säckingen, an Irish monk. While the Abbey had both monks and nuns, only the nuns' convent grew to be an important religious, economic and cultural institution for the entire upper Rhine .

According to the story of Saint Fridolin, St. Hilarius appeared to him in a dream, and commanded him to proceed to an island in the Rhine, in the territories of the Alamanni. In obedience to this summon, Fridolin repaired to the "Emperor" Clovis, who granted him possession of the still unknown island, and thence proceeded through Helion, Strasburg, and Coire, founding churches in every district in honour of St.