A connector is a highway or freeway road in the United States that connects to another highway or freeway. It can be part of an interchange such as the MacArthur Maze or a longer roadway such as the 13-mile-long (21 km) Interstate 635.

A connector route is a type of special route or supplemental route in the United States that serves as a connector, connecting one route to a more prominent route. Connector routes are found among the United States Numbered Highways and among some state route systems like Michigan and Nebraska.

Connector routes can also be designated as a routing between two numbered highways. Examples include:

• Connector M-44, which runs along Plainfield Avenue between Interstate 96 and M-44 north of Grand Rapids, Michigan.
• Pearl Harbor Memorial Turnpike Extension (also known as the Pennsylvania Turnpike Connector), which connects the New Jersey Turnpike with the Delaware River extension of the Pennsylvania Turnpike.