Ethan Allen (1738–1789) was an early American revolutionary. Ethan Allen may also refer to:

Ethan Allen (tour boat) (1979–2005), a tour boat that capsized on Lake George in New York on October 2, 2005

Ethan Allen Express (1996—), a passenger train operated by Amtrak

USS Ethan Allen (SSBN-608) (1960–1983), U.S. Navy ballistic missile submarine, lead ship of her class

Ethan (or Eitan or Eytan in Hebrew), a male given name

USS Ethan Allen (1859–1865), a Civil War era Union Navy 556-ton bark

Fort Ethan Allen (Virginia) (1861–1865), one of Washington, D.C.'s defensive fortifications

Ethan Allen (1904–1993), baseball player and coach

Ethan Allen Interiors, Inc. (1932—), an American furniture company

Ethan Allen class submarine (1960–1992)

Ethan Allen (1806–1871), American gunsmith

Fort Ethan Allen (Vermont) (1894–1960), a former U.S. Army installation in Vermont