Washington State may refer to:

• Washington (state), a U.S. state, often referred to as "Washington state" to distinguish it from the American capital city, Washington, D.C.

• Washington State University, a land-grant college located in the state of Washington

• Washington State Cougars, the athletic program of Washington State University

See also

• Washington station (CTA Red Line), a closed subway station on the Chicago Transit Authority's Red Line

• State of Washington (sternwheeler), steamboat