| Sport | Baseball |
|---|---|
| Founded | 1939 |
| Ceased | 1957 |
| Organizing body | National Baseball Congress |
| Continent | International |
| Last champion(s) |  Japan |
| Most titles |  United States (6 titles) |
The Global World Series was an international semi-pro baseball tournament organized by the United States National Baseball Congress (NBC) in the mid-1950s. It was the successor to various international series between the U.S. teams and other countries, which were held from 1939 to 1950. The Global World Series was similar to the Amateur World Series, but was not sanctioned by the International Baseball Federation (FIBA), and was not limited to amateur players.
The first two editions, in 1955 and 1956, were held at Milwaukee County Stadium in Milwaukee, and the third and final edition was held at Detroit's Briggs Stadium in 1957. The United States team won the first two editions, defeating a team from Hawaii in the finals both years. The third edition saw Japan defeat Canada in the finals. The tournament was discontinued because of high costs and low attendance.