HMS Barbara has been the name of more than one ship of the British Royal Navy, and may refer to:
Nine ships of the Royal Navy have borne the name HMS Shannon, after the River Shannon, the longest river in Ireland:
Three ships of the Royal Navy have been named HMS Princess Charlotte, after either Charlotte, Princess Royal, daughter of George III, or Princess Charlotte Augusta of Wales, daughter of George IV:
Seven ships of the Royal Navy have borne the name HMS Alexander:
Five ships of the Royal Navy have been named HMS Eclair:
Eighteen ships of the Royal Navy have borne the name HMS Mercury, or HMS Mercure, after the God Mercury, of Roman mythology:
Eight ships of the Royal Navy have borne the name HMS Siren, Syren or Sirene, after the Sirens of Greek mythology:
Eleven ships of the Royal Navy have borne the name HMS Hawk after the bird of prey, the hawk:
Six ships of the Royal Navy have borne the name HMS Halifax, after the English town of Halifax, West Yorkshire and the city of Halifax, Nova Scotia.
Six ships of the Royal Navy have borne the name HMS St Lawrence:
Halifax commonly refers to:
Three ships of the Royal Navy have borne the name HMS Alban. Another was planned but never completed:
Fifteen ships of the Royal Navy have borne the name HMS Speedwell:
A number of ships of the Royal Navy have borne the name HMS Diligent.
Two ships captured from the French have served the British Royal Navy under the name HMS Decouverte.
Four ships of the Royal Navy have been named HMS Bacchus, after the Greco-Roman deity Bacchus:
Seven ships of the Royal Navy have been named Pigmy:
Four ships of the Royal Navy have been named HMS Berbice for the Berbice region:
Numerous French privateers have borne the name Vengeur ("Avenger"):
Six vessels of the Royal Navy have been named HMS Sylph after the air spirits known as sylphs: