| Tournament details | |
|---|---|
| Host country |  Mexico |
| Teams | 11 |
| Final positions | |
Champions |  United States (1st title) |
Runner-up | Mexico |
Third place |  New Zealand |
| Fourth place |  Puerto Rico |
1968 → | |
The 1966 ISF Men's World Championship was an international softball tournament and the inaugural World Championship. The tournament was held in Mexico City, Mexico from 23 October to 1 November 1966. Eleven nations competed.[1]
- ^ "ISF Men's World Championship - Historical Records". 2015 ISF Men's World Championship. International Softball Federation. Archived from the original on 26 June 2015. Retrieved 26 June 2015.