Rhode Island Route 401
| Route 401 highlighted in red | ||||
| Route information | ||||
| Maintained by RIDOT | ||||
| Length | 2.50 mi (4.02 km) | |||
| Major junctions | ||||
| West end | Route 2 in East Greenwich | |||
| Route 4 in East Greenwich | ||||
| East end | US 1 in East Greenwich | |||
| Location | ||||
| Country | United States | |||
| State | Rhode Island | |||
| Highway system | ||||
| 
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Route 401 is a 2.50-mile (4.02 km) state highway in East Greenwich, Rhode Island, United States.