| Demonstration sport | |
|---|---|
 | |
| Tournament details | |
| Country | Japan |
| City | Tokyo |
| Venue(s) | Meiji Jingu Stadium |
| Dates | October 11, 1964 |
| Teams | 2 |
| Final positions | |
| Champions |  United States |
| Runner-up |  Japan |
| Tournament statistics | |
| Games played | 2 |
Baseball at the 1964 Summer Olympics was a demonstration sport at the Tokyo games. It would become an official sport 28 years later at the 1992 Summer Olympics. It was the fifth time a baseball exhibition was held at the Olympics. The collegiate United States team played two games against two different Samurai Japan lineups – one a collegiate team, the other made up of adult amateur players.