| Noc: | SMR |
| Nocname: | Comitato Olimpico Nazionale Sammarinese |
| Games: | Summer Olympics |
| Year: | 2008 |
| Website: | |
| Location: | Beijing |
| Competitors: | 4 |
| Sports: | 3 |
| Flagbearer: | Daniela Del Din (opening) Emanuele Nicolini (closing) |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
San Marino competed at the 2008 Summer Olympics in Beijing, People's Republic of China.
See main article: Athletics at the 2008 Summer Olympics.
See main article: Shooting at the 2008 Summer Olympics.
See main article: Swimming at the 2008 Summer Olympics.