Horst Wängler is an East German retired slalom canoeist who competed in the 1960s.
He won four medals at the ICF Canoe Slalom World Championships with two golds (Folding K-1 team: 1961, Mixed C-2 team: 1965), a silver (Mixed C-2: 1967) and a bronze (Mixed C-2: 1965).
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