| Tourney Name: | Roller Hockey World Cup |
| Year: | 1966 |
| Other Titles: | Roller Hockey Men's World Championships |
| Country: | Brazil |
| Dates: | – |
| Num Teams: | 10 |
| Confederations: | 3 |
| Venues: | 1 |
| Cities: | 1 |
| Count: | 5 |
| Matches: | 45 |
| Goals: | 284 |
| Prevseason: | 1964 |
| Nextseason: | 1968 |
The 1966 Roller Hockey World Cup was the seventeenth roller hockey world cup, organized by the Fédération Internationale de Roller Sports. It was contested by 10 national teams (6 from Europe, 3 from South America and 1 from North America, for the first time ever). All the games were played in the city of São Paulo, in Brazil, the chosen city to host the World Cup.