Käthe Odwody (born Katharina Wanek: 6 March 1901 - 23 September 1943) was an Austrian worker at a commercial bakery and trades union officer who became a communist resistance activist against the Dollfuß dictatorship and, after 1938, against the National Socialist ("Nazi") régime.
Her cover name within the Siegl resistance group was "Walli".
She was executed, along with two of her resistance comrades, by guillotine at the district court complex in Vienna on 23 September 1943.