Delaware is a U.S. state.

Delaware may also refer to:

• Delaware people, the Native American tribe also known as the Lenape
  • Delaware Nation, a Native American tribe in Oklahoma
  • Delaware language, the Algonquian language of the Delaware tribe

• Delaware Colony, English colony (1664–1707) then British colony (1707–76) preceding statehood
• Delaware River, a major river in the eastern United States
• Delaware River (Kansas)
• Delaware Bay, tidal inlet which separates New Jersey from the state of Delaware; fed by the Delaware River
• Delaware Lake, a lake in Delaware County, New York
• Delaware Basin, a geologic depositional and structural basin in West Texas and southern New Mexico
• Delaware Water Gap, Pennsylvania
• Delaware Falls, one of 24 named waterfalls in Ricketts Glen State Park in Pennsylvania

• Delaware City, Delaware
• Delaware, Indiana
• Delaware, Iowa
• Delaware, Michigan
• Delaware, Missouri
• Delaware, New York
• Delaware, Ohio
• Delaware, Oklahoma
• West Point, Virginia, formerly known as Delaware

• Delaware, Ontario

• USS Delaware, the name of various United States Navy ships
• NOAAS Delaware II (R 445), a United States National Oceanic and Atmospheric Administration fisheries research ship in service since 1968
• Delaware (fireboat), in service in Philadelphia (1950-), see Fireboats of Philadelphia

• Delaware (band)
• Delaware (album) first album by Drop Nineteens
• "Delaware" (song) a popular song from 1959 with puns on the names of the American states

• Delaware (chicken), breed of chicken from the state
• Blue Hen of Delaware, other breed of chicken from the state
• Delaware General Corporation Law
• Delaware (grape)
• Delaware St. John, an adventure game series
• Delaware Plan, a proposed system to reorganize the state's presidential elections
• University of Delaware, a private university

• Thomas West, 3rd Baron De La Warr, namesake of Delaware
• Delaware County (disambiguation)
• Delaware Township (disambiguation)
• All pages with titles beginning with Delaware