| Hans-Joachim Mars | |
| Birth Date: | 19 February 1926 |
| Birth Place: | Niemierzyno, Poland |
| Sport: | Sports shooting |
| Event: | 300 meter rifle three positions |
Hans-Joachim Mars (born 19 February 1926) is a German former sports shooter. He competed in the 300 metre rifle, three positions event at the 1960 Summer Olympics.[1]