Hermann Weigert (20 October 1890 in Breslau – 2 April 1955 in New York City[1]) was a German vocal coach, pianist, and conductor.
Trained at the Berlin Hochschule für Musik, Weigert began his career working as a vocal coach at the Magdeburg Opera and at Theater Lübeck.
He left those posts to join the conducting staff at the Berlin State Opera in 1920 where he worked with Kurt Adler, Dimitri Mitropoulos, Otto Klemperer, George Szell, and Heinz Tietjen.
At the Met he became known as an expert on the works of Richard Wagner, and became the primary vocal coach to sopranos Kirsten Flagstad and Astrid Varnay; the latter of whom he married in 1944.
[1] In 1948 Weigert left his post at the Met and returned to Europe with Flagstad and Varnay where he helped orchestrate a successful international launch to his wife's career, beginning with the Royal Opera House in London.