G
- "Gin Palace" - HMS Agincourt; originally built for Brazilian Navy and given higher standards of comfort for officers, and lesser standards of comfort for the crew than most RN ships. Also a deliberate misspelling of the name: A Gin Court.
- "Ghetto" - USS Gato
- "Gipper" – USS Ronald Reagan; named for Ronald Reagan's nickname, from his role of George "The Gipper" Gipp in the film Knute Rockne, All American
- "The Gold Eagle" – USS Carl Vinson
- "The Golden Devil" (Dutch "Den Gulden Duvel") – HMS Sovereign of the Seas
- "Le Grand Hotel" – French ship Hoche
- "The Grand Old Lady" – HMS Warspite
- "The Gray Ghost" – USS Hornet
- "The Gray Lady" – USS Lexington
- "GW" – USS George Washington; initials of the ship's namesake
- "Greenpig" -USS Greenling
Read more about this topic: List Of Warships By Nickname