| Tonning Hammer | |
| Fullname: | Tonning Geir Hammer |
| Birth Date: | 4 August 1956 |
| Position: | Left back |
| Years1: | 1976–1977 |
| Clubs1: | Vidar |
| Years2: | 1978–1985 |
| Clubs2: | Viking |
| Caps2: | 152 |
| Goals2: | 6 |
| Years3: | 1986 |
| Clubs3: | Madla |
| Years4: | 1987 |
| Clubs4: | Vidar |
| Nationalteam1: | Norway U19 |
| Nationalyears1: | 1974–1975 |
| Nationalcaps1: | 11 |
| Nationalgoals1: | 0 |
| Nationalteam2: | Norway U21 |
| Nationalyears2: | 1975–1977 |
| Nationalcaps2: | 10 |
| Nationalgoals2: | 0 |
| Nationalteam3: | Norway |
| Nationalyears3: | 1982 |
| Nationalcaps3: | 1 |
| Nationalgoals3: | 0 |
Tonning Hammer (born 4 August 1956) is a Norwegian footballer who spent most of his career in Viking. He was a youth and U21 international and played in one match for the Norway national football team in 1982.