| State: | ID |
| Route: | 54 |
| Type: | SH |
| Map Custom: | yes |
| Map Notes: | SH-54 highlighted in red |
| Length Mi: | 15.510 |
| Length Ref: | [1] |
| Direction A: | West |
| Direction B: | East |
| County: | Kootenai |
| Previous Route: | 53 |
| Next Route: | 55 |
| Previous Type: | SH |
| Next Type: | SH |
State Highway 54 (SH-54) is a 15.51-longNaN-long state highway in Kootenai County, Idaho, United States, that connects Idaho State Highway 41 (SH-41) in Spirit Lake with Hudson Bay Road and North Main Avenue in Bayview.
SH-54 begins at an intersection with SH-41 in the on the southern edge of Spirit Lake. The route travels east out of the city, passing by Timberlake High School. SH-54 passed through the city of Athol, with a diamond interchange with U.S. Route 95 immediately thereafter. At Smylie Boulevard, the road continues east, turning northeast at a circular intersection with Good Hope Road, where it enters Farragut State Park. SH-54 continues near Lake Pend Oreille, where it turns north into the town of Bayview. The road makes a brief turn to the east before terminating at Hudson Bay Road and North Main Avenue near the shores of Scenic Bay.