List of U.S. Highways in Connecticut

United States Numbered Highway System
US Route markers
System information
Length:	547.75 mi (881.52 km)
Notes:	U.S. Highways in Connecticut maintained by ConnDOT
Highway names
Interstates:	Interstate X
US Highways:	U.S. Route X
State:	State Route X
System links
Routes in Connecticut Interstate U.S. State SSR SR

United States Numbered Highways in the U.S. state of Connecticut, are numbered by the American Association of State Highway and Transportation Officials (AASHTO) and maintained by the Connecticut Department of Transportation, a total of 547.75 miles (881.52 km) as a system of state highways and are numbered from 1 to 202.

In 1926, the U.S. highway system was implemented. U.S. Routes 1, 5, 6, and 7, plus 202 were used as designations on several primary state highways, replacing New England routes 1, 2, 3, and 4, respectively. The other New England routes that were not re-designated as U.S. routes became ordinary state highways but kept their number designation, which are used even today (with some realignment).