Tetricus of Langres was a 6th-century bishop belonging to a prestigious Gallo-Roman senatorial family. As the son of Gregory of Langres, he eventually succeeded his father as the leader of the see of Langres around 539 or 540. He primarily resided in Dijon during his lengthy tenure, which lasted approximately 33 years. Throughout his episcopate, he was an active participant in significant ecclesiastical gatherings, including the Council of Paris in 552 and the Fifth Council of Orléans in 549.