Walter Ludin (27 February 1908 – ?) was a Swiss coxswain. He competed at the 1952 Summer Olympics in Helsinki with the men's coxed pair where they were eliminated in the round one repêchage. Ludin won medals at various European Rowing Championships in the coxed pair boat class: silver in 1950 and 1951, and gold in 1954 and 1955. He won two European silver medals, in 1949 and 1951, with the coxed four.