| 1966 Saskatchewan Roughriders season | |
|---|---|
| General manager | Ken Preston |
| Head coach | Eagle Keys |
| Home field | Taylor Field |
| Results | |
| Record | 9–6–1 |
| Division place | 1st, West |
| Playoff finish | Won Grey Cup |
| Uniform | |
 | |
The 1966 Saskatchewan Roughriders season was the 57th in franchise history. Following a first-place finish in the regular season, the Roughriders won their first Grey Cup over the Ottawa Rough Riders. It was Saskatchewan's first championship in franchise history.