Henny Wolff (3 February 1896[a] – 29 January 1965) was a German soprano concert singer and voice teacher.

She studied with her mother,[1] then at the conservatory of her hometown from 1906 to 1912,[2] and in Berlin with Julius von Raatz-Brockmann.

[1] She then performed both in Germany and internationally, especially with works by Johann Sebastian Bach and George Frideric Handel.

She served as a voice instructor at the first Ferienkurse für internationale neue Musik in Darmstadt in 1946, and presented lieder by Gustav Mahler, Ernst Krenek and Reutter.

[1][6] She was awarded the Johannes Brahms Medal from the city of Hamburg in 1958,[7][8] on the occasion of the composer's 125th anniversary.