Johannes (Johann Christoph) Zumpe (pronounced zumpy; 14 June 1726 in Fürth, Free Imperial City of Nuremberg, modern Germany – buried 5 December 1790 in London, UK) was a leading maker of early English square pianos, a form of rectangular piano with a compass of about five octaves.
The pianos sounded like mellow harpsichords, and had a damper stop in the left cheek of the case.
Zumpe is known as the creator of English square pianos.