| Tournament details | |
|---|---|
| Country | Cuba |
| Venue(s) | 1 (in 1 host city) |
| Dates | 14 September – 6 October |
| Teams | 7 |
| Final positions | |
| Champions |  Cuba (2nd title) |
| Runner-up |  Nicaragua |
| Third place |  United States |
| Fourth place |  Venezuela |
| Tournament statistics | |
| Games played | 42 |
| MVP | Connie Marrero |
The 1940 Amateur World Series was the third Amateur World Series (AWS), an international men's amateur baseball tournament. The tournament was sanctioned by the International Baseball Federation (which titled it the Baseball World Cup as of the 1988 tournament). The tournament took place, for the second consecutive time, in Cuba. It was contested by seven national teams playing twelve games each from September 14 through October 6 in Havana. Cuba won its second, and second consecutive, AWS title.
