List of numbered routes in Massachusetts

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
Massachusetts State Highway System Interstate US State

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.

These are state roads which, for the most part, do not carry a numbered designation. They are generally short in length and serve important roles as main roads or connections between other main roads.

These are named highways in the state which also carry numbered designations. Some are simply names of streets which carry a numbered route(s). Roads named after people/organizations were generally done so ceremoniously, after the numeric designation(s) already existed. Others carry more general names, such as the Southeast Expressway and Central Artery in Boston (which both refer to the same continuous span of I-93).
Several named highways cover the entire length of a given route in the state; for example, all of Interstate 90 in Massachusetts is the Massachusetts Turnpike, and the entire length of Route 213 is the Loop Connector.(*) denotes that the named highway spans the entire length of the numbered route in the state.

Road jurisdiction maps: