| Hans Siemensmeyer | |
| Height: | 1.76 m |
| Birth Date: | 1940 9, df=yes |
| Birth Place: | Oberhausen, Germany |
| Position: | Midfielder |
| Years1: | 1960–1965 |
| Clubs1: | Rot-Weiß Oberhausen |
| Caps1: | 152 |
| Goals1: | 43 |
| Years2: | 1965–1974 |
| Clubs2: | Hannover 96 |
| Caps2: | 278 |
| Goals2: | 72 |
| Years3: | 1974–1975 |
| Clubs3: | TSV Havelse |
| Nationalyears1: | 1967 |
| Nationalteam1: | Germany |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 2 |
| Manageryears1: | 1975–1984 |
| Managerclubs1: | TSV Havelse |
| Manageryears2: | 1988–1989 |
| Managerclubs2: | Hannover 96 |
Hans Siemensmeyer (born 23 September 1940) is a retired German football player and coach.
As a player, he spent nine seasons in the Bundesliga with Hannover 96. He also represented Germany three times, including a UEFA Euro 1968 qualifier against Yugoslavia and two friendlies. He scored two goals in a 5–1 win over France.