Leonie Rysanek (November 14, 1926-March 7, 1998) was an Austrian soprano.
Rysanek was born in Vienna and made her Metropolitan Opera debut in 1959 as Lady Macbeth replacing Maria Callas. She made her farewell performance as the Countess in The Queen of Spades. Over her career, she sang 299 performances of 24 roles at the Met. She was featured in the Met premieres of Macbeth, Nabucco, Ariadne auf Naxos, Die Frau ohne Schatten, and Katya Kabanova.
In 1951, she was the first Sieglinde of the New Bayreuth Festival in Die Walk├╝re under Herbert von Karajan.
She was appointed curator of the Vienna Festival a few months after her retirement, a post she held until her death in Vienna at 71 after a long illness.