| State: | ID |
| Route: | 47 |
| Type: | SH |
| Map Custom: | yes |
| Map Notes: | SH-47 highlighted in red |
| Length Mi: | 12.420 |
| Direction A: | West |
| Junction: | east of Ashton |
| Direction B: | East |
| Previous Type: | SH |
| Previous Route: | 46 |
| Next Type: | SH |
| Next Route: | 48 |
State Highway 47 (SH‑47) is a 12.42miles state highway in Fremont County, Idaho, United States, that connects U.S. Route 20 (US 20) in Ashton with the Mesa Falls Scenic Byway (northeast of Warm River).
SH‑47 starts at an intersection with US 20 and heads due east as Main Street through Ashton. The highway continues east after an intersection with the northern terminus of Idaho State Highway 32, passing through Marysville as East 1300 North. Slowly, SH‑47 bends to the north as Mesa Falls Scenic Byway, going through Warm River and crossing over the same-named river. SH‑47 ends in the Targhee National Forest.