Tsushima (対馬) was one of fourteen Etorofu-class escort ships built for the Imperial Japanese Navy during World War II.

The ships had two diesel engines, each driving one propeller shaft, which were rated at a total of 4,200 brake horsepower (3,100 kW) for a speed of 19.7 knots (36.5 km/h; 22.7 mph).

The ships had a range of 8,000 nautical miles (15,000 km; 9,200 mi) at a speed of 16 knots (30 km/h; 18 mph).

[2] The main armament of the Etorofu class consisted of three Type 3 120-millimeter (4.7 in) guns in single mounts, one superfiring pair aft and one mount forward of the superstructure.

She served on repatriation duties until 1947 when she was turned over to the Republic of China Navy on 31 July and renamed Lin An.