Henny Wolff (3 February 1896 – 29 January 1965) was a German soprano concert singer and voice teacher. She made an international career, known for performing music by Bach and Handel, but also performing contemporary classical music. Composers wrote music for her and performed with her, such as Hermann Reutter. She was a voice teacher at the , in Berlin, and from 1950 to 1964 at the Musikhochschule Hamburg. She was awarded the city's Johannes Brahms Medal.