| Birth Date: | 16 May 1917 |
| Birth Place: | Berlin, Germany |
| Death Place: | Unkel, Germany |
| Sport: | Swimming |
| Club: | Poseidon Berlin |
Heinz Arendt (16 May 1917 – 5 January 2006) was a German swimmer. He won a bronze medal in the 1500 metre freestyle at the 1938 European Aquatics Championships. He finished seventh in the same event at the 1936 Summer Olympics.
His sister Gisela Jacob-Arendt and nephew Rainer Jacob were German Olympic swimmers, and Gisela competed along with her brother at the 1936 Games.