| Birth Date: | 4 January 1935 |
| Birth Place: | Sarstedt, Germany |
| Height: | 1.82m (05.97feet) |
| Weight: | 81kg (179lb) |
| Sport: | Athletics |
| Event: | 100 m |
| Club: | Hannover 96 |
| Pb: | 100 m – 10.4 (1958)[1] |
| Show-Medals: | yes |
Walter Mahlendorf (born 4 January 1935) is a German former sprinter who won a gold medal in the 4 × 100 m relay at the 1960 Summer Olympics. The German team finished second behind the American team, equaling its own world record of 39.5, but the Americans were later disqualified for an incorrect exchange.[2]
Mahlendorf was also a member of the German's 4 × 100 m relay team that won a gold medal at the 1958 European Championships. Mahlendorf never won a national sprint title. After retiring from competitions he worked as a director of a sports complex in Bochum.[1]