| State: | NE |
| Type: | NE |
| Route: | 18 |
| Map: | Nebraska Highway 18 map.png |
| Map Notes: | Nebraska Highway 18 highlighted in red |
| Length Mi: | 39.01 |
| Length Round: | 2 |
| Length Ref: | [1] |
| Direction A: | West |
| Terminus A: | in Curtis |
| Direction B: | East |
| Terminus B: | south of Elwood |
| Counties: | Frontier, Gosper |
| Previous Type: | NE |
| Previous Route: | 17 |
| Next Type: | NE |
| Next Route: | 19 |
Nebraska Highway 18 is a highway in southwestern Nebraska. It has a western terminus in Curtis at Nebraska Highway 23. Its eastern terminus is at an intersection with U.S. Highway 283 south of Elwood. The easternmost portion of the highway is a gravel road.
Nebraska Highway 18 begins in Curtis at an intersection with Nebraska Highway 23. It goes southeast out of Curtis and goes through Stockville. It goes east from Stockville, then turns south for a brief distance. It turns east, and becomes a gravel road for the rest of its route. Except for one brief southward turn, the highway continues due east until it ends at U.S. Highway 283 between Elwood and Arapahoe.[1]