| Clubname: | CO Saint-Dizier |
| Fullname: | Club Olympique de Saint-Dizier |
| Founded: | 1933 |
| Ground: | Stade Charles Jacquin, Saint-Dizier |
| Capacity: | 6,990 |
Club Olympique de Saint-Dizier is a French football club based in Saint-Dizier, Haute-Marne. It was founded in 1933. The club was declared bankrupt in April 2013.