Walburga "Dolly" Oesterreich (née Korschel; 1880 German Empire – April 8, 1961 Los Angeles, California) was an American housewife, married to a wealthy textile manufacturer Fred William Oesterreich (December 8, 1877 – August 22, 1922). She gained notoriety for her bizarre 10-year affair with Otto Sanhuber (aka: Otto Weir, Walter Klein), which culminated in the shooting death of her husband.