Hermann of Schleswig (died 16 January 1151), also known as Hermann of Klosterrath, was a titular bishop of Schleswig, canon and possibly also scribe at Lund Cathedral. He entered the monastery of Rolduc at an early age, and after failing to become abbot of the monastery eventually left for Lund (then part of Denmark, today in Sweden). He provided several services to the bishops of Lund and was appointed to become bishop of Schleswig, but the local clergy had elected Occo of Schleswig in 1137 as their bishop and refused to accept Hermann. He therefore remained in Lund, where he is buried in the crypt of Lund Cathedral.