Ludwig Hupfeld (26 November 1864 – 8 October 1949) was a German musical instrument maker and industrialist.
Hupfeld attended the Royal Grammar School in Fulda and undertook commercial training in Cologne.
During World War II, the company made ammunition boxes and fuel tanks in the factory.
At the end of the war, as an ex-arms manufacturer, it was made a state-owned enterprise by the communist authorities of East Germany in 1949.
The company was renamed VEB Deutsche Pianounion and continued to produce pianos under the brand name Hupfeld.