| HMS Mars|
1 July 1848
| Chatham Dockyard|
| Vanguard-class ship of the line|HMS Mars (1848) Wikipedia
HMS Mars was a two-deck 80-gun second rate ship of the line of the Royal Navy, launched on 1 July 1848 at Chatham Dockyard.
She served as a supply carrier in the Crimean War, and was fitted with screw propulsion in 1855. She then saw service in the Mediterranean. In 1869 she was moored in the River Tay. She served there as a training ship until 1929, when she was sold and towed to Thos W Ward Inverkeithing to be broken up.