Mars was a 64-gun third-rate ship of the line of the French Navy.

She was taken into Royal Navy service as HMS Mars and was wrecked in 1755 near Halifax, Nova Scotia.

Le Mars was captured by HMS Nottingham, under Philip Saumarez, off Cape Clear, off Ireland in 1746.

Commissioned in March 1747, under the command of Captain Edward Hawke.

Francis Light, founder of Penang, began his Royal Navy service as a surgeon's servant on Mars in February 1754.