Helen Jeanette Donath (née Erwin; born July 10, 1940) is an American soprano with a career spanning fifty years.

She sang from 1963 until 1968 at the Staatsoper Hannover where she met her future husband, choir master and conductor Klaus Donath.

[citation needed] Donath performed works of Bach, Mozart, Haydn, Schumann, Wagner, Richard Strauss, and has worked and recorded under Herbert von Karajan, Karl Richter, Wolfgang Sawallisch, Rafael Kubelík, Antal Doráti, Leonard Bernstein, Georg Solti, Giuseppe Patanè, Daniel Barenboim, Nikolaus Harnoncourt, Neville Marriner, Helmuth Rilling, Colin Davis, Eugen Jochum, Riccardo Muti, Zubin Mehta, Eliahu Inbal.

She was awarded in 2005 the Verdienstkreuz I. Klasse des Niedersächsischen Verdienstordens (Cross of Merit 1st Class of Lower Saxony), in 1990 the Niedersachsenpreis and made Kammersängerin of Bavaria.

Her finest moments on disc include her Eva in Wagner's Die Meistersinger von Nürnberg and Sophie in Strauss's Der Rosenkavalier.