Fulmar of Karden (circa 1135 – 1189), also spelled Folmar or Vollmar, was the Archbishop of Trier from 1183 and the last to not also be a prince elector. He opposed the emperor in the late twelfth-century phase of the Investiture Controversy.
His family originating from the city of Karden on the Moselle, Fulmar became an archdeacon in Trier. He was appointed archbishop by Pope Lucius III and opposed by Frederick Barbarossa, who had the provost Rudolf invested as antiarchbishop. The schism remained until 1190, only after Fulmar's death (in Trier).