HMS Mariner was a reciprocating engine-powered Algerine-class minesweeper during the Second World War.

The engines produced a total of 2,400 indicated horsepower (1,800 kW) and gave a maximum speed of 16.5 knots (30.6 km/h; 19.0 mph).

They carried a maximum of 660 long tons (671 t) of fuel oil that gave them a range of 5,000 nautical miles (9,300 km; 5,800 mi) at 10 knots (19 km/h; 12 mph).

On completion she was transferred to the Royal Navy as part of an exchange for an equal number of Castle-class corvettes.

She was handed over to Burma in the pools of London on 18 April 1958 and renamed Yang Myo Aung.