Oregon Route 3
| Route 3 highlighted in red | ||||
| Route information | ||||
| Maintained by ODOT | ||||
| Length | 43.13 mi (69.41 km) | |||
| Existed | 1932–present | |||
| Component highways | Enterprise–Lewiston Highway No. 11 | |||
| Major junctions | ||||
| South end | OR 82 in Enterprise | |||
| North end | SR 129 near Flora | |||
| Location | ||||
| Country | United States | |||
| State | Oregon | |||
| Counties | Wallowa | |||
| Highway system | ||||
| 
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Oregon Route 3 is a state highway in the U.S. state of Oregon. It is located entirely within Wallowa County. OR 3 is the lowest numbered highway in the state of Oregon, of any type (state, federal, or Interstate). OR 3 traverses the Enterprise–Lewiston Highway No. 11 of the Oregon state highway system.