| Massachusetts Routes | |
|---|---|
Standard route markers | |
| System information | |
| Notes | Routes are not always state-maintained, and not all state highways are Routes, One route enters Massachusetts that is maintained by NHDOT |
| Highway names | |
| Interstates | Route I-X or Route X |
| US Highways | Route US X or Route X |
| State | Route X |
| System links | |
In the U.S. state of Massachusetts, the highway division of the Massachusetts Department of Transportation (MassDOT) assigns and marks a system of state-numbered routes.