Walter Piemann (born November 14, 1926) is an Austrian sprint canoeist who competed in the late 1940s and early 1950s. He won two medals at the ICF Canoe Sprint World Championships with a silver (K-4 1000 m: 1948) and a bronze (K-4 10000 m: 1950). Piemann also competed at the 1948 Summer Olympics in London, finishing eighth in the K-1 1000 m and ninth in the K-2 10000 m events.