| Helmut Sandmann | |
| Birth Date: | 1944 12, df=yes |
| Birth Place: | Hamburg, Germany |
| Position: | Defender |
| Youthclubs1: | Wandsbeker FC |
| Years1: | 1963–1973 |
| Caps1: | 195 |
| Goals1: | 2 |
| Years2: | 1973–1976 |
| Clubs2: | HSV Barmbek-Uhlenhorst |
Helmut Sandmann (born 21 December 1944) is a retired German football player. He spent 10 seasons in the Bundesliga with Hamburger SV.[1]