| Year: | 1966 |
| Team: | North Dakota Fighting Sioux |
| Sport: | football |
| Conference: | North Central Conference |
| Short Conf: | NCC |
| Record: | 8–2 |
| Conf Record: | 5–1 |
| Head Coach: | Marvin C. Helling |
| Hc Year: | 9th |
| Stadium: | Memorial Stadium |
| Champion: | NCC co-champion Pecan Bowl champion |
| Bowl: | Pecan Bowl |
| Bowl Result: | W 42–14 vs. |
The 1966 North Dakota Fighting Sioux football team, also known as the Nodaks, was an American football team that represented the University of North Dakota in the North Central Conference (NCC) during the 1966 NCAA College Division football season. In its ninth year under head coach Marvin C. Helling, the team compiled an 8–2 record (5–1 against NCC opponents), tied with North Dakota State for the NCC championship, defeated in the Pecan Bowl, and outscored opponents by a total of 338 to 154.[1] The team played its home games at Memorial Stadium in Grand Forks, North Dakota.