| State: | RI |
| Type: | RI |
| Route: | 77 |
| Map Custom: | yes |
| Map Notes: | Route 77 highlighted in red |
| Length Mi: | 14.3 |
| Length Round: | 1 |
| Direction A: | South |
| Direction B: | North |
| Terminus A: | Rhode Island Road in Little Compton |
| Junction: | in Tiverton in Tiverton |
| Terminus B: | in Tiverton |
| Counties: | Newport |
| Previous Type: | Route |
| Previous Route: | 51 |
| Next Type: | Route |
| Next Route: | 78 |
Route 77 is a state highway in the U.S. state of Rhode Island. It runs approximately 14miles from Rhode Island Road in Little Compton to Route 24 in Tiverton.
Route 77 starts at Rhode Island Road in southern Little Compton. It runs in a northerly direction and intersects Route 179. Continuing north past Route 177, Route 77 passes through downtown Tiverton. It continues north, directly paralleling the Sakonnet River, until it reaches its northern terminus at Route 24.
The section of Route 77 between Route 179 and Route 177 was part of Route 126 until May 1962, which now runs through the Blackstone Valley.[1]