Germanus of Granfelden was a 7th-century monk and the inaugural abbot of the Moutier-Grandval Abbey. Born in Trier to a wealthy senator, he pursued a monastic vocation at age seventeen, studying under Arnulf of Metz before joining the Columbanian monastic network. He eventually led the monastery at Granfeld for thirty-five years. He is remembered as a martyr, having been killed during political negotiations between local dukes and the people of the Sornegau. He is venerated in the Catholic and Eastern Orthodox traditions.