Hardt (surname)
Hardt is a German surname. Notable people with the surname include:
- Dick Hardt (born 1963), American-Canadian software executive
- Ernst Hardt (1876–1947), German author
- Jürgen Hardt (born 1963), German politician
- Michael Hardt (born 1960), American philosopher
- Nick Hardt (born 2000), Dominican tennis player