| State: | ND |
| Type: | ND |
| Route: | 73 |
| Length Mi: | 11.332 |
| Length Round: | 3 |
| Map Custom: | yes |
| Established: | c. 1975 |
| Direction A: | West |
| Terminus A: | east of Watford City |
| Direction B: | East |
| Terminus B: | north of Mandaree |
| Counties: | McKenzie |
| Previous Type: | ND 1970 |
| Previous Route: | 69 |
| Next Type: | US |
| Next Route: | 81 |
North Dakota Highway 73 (ND 73) is a 11.332adj=midNaNadj=mid east–west state highway in the U.S. state of North Dakota. ND 73's western terminus is at ND 23 east of Watford City, and the eastern terminus is at ND 22 north of Mandaree.[1]