Constitution Avenue is a major east-west street in the city of Washington, D.C., USA.

Constitution Avenue may refer to: Constitution Avenue, Canberra, a street in Canberra, Australia Constitution Avenue (Islamabad), a street in Islamabad, Pakistan Constitution Avenue, Vilnius (Konstitucijos Avenue), a street in Vilnius, Lithuania

See also U.S. Route 50, a US highway which includes Constitution Avenue