Two ships of the Royal Fleet Auxiliary have been named Sir Galahad, after the knight of Arthurian legend.
- (L3005), a landing ship (logistic), was lost in the Falklands War
- (L3005), a landing ship (logistic) named for (and given the same pennant number as) the previous Sir Galahad, was involved in the 2003 invasion of Iraq
See also
- a used as a minesweeper in World War II
- RFA Sir Galahad (47-010), a Tyne-class lifeboat of the Royal National Lifeboat Institution, named for the RFA ship lost in the Falklands
