| Geoffrey Marks | |
| Fullname: | Geoffrey Charles Marks |
| Birth Date: | 2 January 1932 |
| Birth Place: | Colombo, Ceylon |
| Death Place: | Melbourne, Australia |
Geoffrey Charles Marks (2 January 1932 - 30 August 1990) was a Sri Lankan swimmer. He competed in three events at the 1952 Summer Olympics.[1]