Four ships of the Royal Navy have been named HMS Justitia, after the goddess Justitia, of Roman mythology:
HMS Justitia was a prison ship, formerly a merchant vessel, purchased in 1777 and in service until at least 1795.
HMS Justitia was a 74-gun third rate captured from the Danish at the Battle of Copenhagen in 1807 and broken up in 1817.
HMS Justitia was a 64-gun third rate, formerly a Dutch ship. She was seized in 1796 and named HMS Zealand, renamed HMS Justitia in 1812 and was sold in 1830.
HMS Justitia was a convict ship, acquired in 1804 as the 50-gun fourth rate HMS Hindostan. She was rearmed to 20 guns and renamed HMS Dolphin in 1819, and then HMS Justitia in 1830 until her sale in 1855.
