Two ships of the United States Navy have been named Alpha, after the first letter in the Greek alphabet.
Alpha Phi Alpha | USS Monitor | Sigma Alpha Epsilon | USS Constitution | Kappa Alpha Psi | Alpha | USS ''Constitution'' | Phi Mu Alpha Sinfonia | Pi Kappa Alpha | Alpha Blondy | Piper Alpha | Alpha Delta Phi | Alpha Centauri | alpha | USS Defiant | Sigma Alpha Mu | Kappa Alpha Theta | ISO 3166-1 alpha-2 | Alpha Video | Alpha Kappa Alpha | Alpha Epsilon Pi | USS ''Monitor'' | USS Enterprise (NCC-1701) | USS Cole bombing | Sony Alpha | Kappa Alpha Society | Zeta Tau Alpha | USS New Ironsides | USS Merrimack | USS Enterprise (CV-6) |