Rupert Weinstabl (20 November 1911 – 7 September 1953) was an Austrian sprint canoeist who competed in the 1930s.

At the 1936 Summer Olympics in Berlin, he won two medals with his partner Karl Proisl with a silver in the C-2 1000 m and a bronze in the C-2 10000 m events.

Weinstabl also won two medals at the 1938 ICF Canoe Sprint World Championships in Vaxholm with a gold in the C-2 1000 m and silver in the C-2 10000 m events.

He competed for Germany because it had annexed Austria at the time of the championships.

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