USS Munrio (ID-2054) was a cargo ship that served in the United States Navy from 1918 to 1919.

SS Munrio, probably around the time of her completion in 1916.
History
United States
Name	USS Munrio
Namesake	Previous name retained
Builder	Maryland Steel Company, Sparrows Point, Maryland
Launched	14 September 1916
Completed	1916
Acquired	14 November 1918
Commissioned	14 November 1918
Decommissioned	3 February 1919
Fate	Transferred to United States Shipping Board 3 February 1919 for simultaneous return to owners
Notes	In commercial service as SS Munrio 1916-1918 and 1919-1937, SS Szent Gellert 1937-1940, SS Carola 1940-1946, SS Mary Louise 1946-1950, SS Maria L. 1950, SS Tropic 1950, and SS Nerina 1950 Wrecked 25 November 1950
General characteristics
Type	Cargo ship
Tonnage	3,868 Gross register tons
Displacement	8,330 tons (normal)
Length	346 ft 6 in (105.61 m)
Beam	48 ft 2 in (14.68 m)
Draft	23 ft (7.0 m) (mean)
Propulsion	Steam engine
Speed	12.0 knots
Complement	60
Armament	None

SS Munrio was built as a commercial cargo ship by the Maryland Steel Company at Sparrows Point, Maryland, in 1916, for the Munson Steamship Line. The U.S. Navy acquired Munrio from Munson on 14 November 1918, assigned her the naval registry Identification Number (Id. No.) 2054, and commissioned her as USS Munrio at Philadelphia, Pennsylvania, the same day.

Assigned to the Naval Overseas Transportation Service (NOTS), Munrio departed Philadelphia with a cargo of 4,207 tons of United States Army supplies for France on 21 November 1918, arriving at Le Havre, France, on 10 December 1918 to unload her cargo. On 25 December 1918 she crossed the English Channel to Plymouth, England. On 27 December 1918 she got underway with a mixed U.S. Army cargo of 2,500 tons for Philadelphia, where she arrived on 12 January 1919.

Munrio was decommissioned on 3 February 1919 and transferred to the United States Shipping Board the same day for simultaneous return to Munson Steamship Line.

She returned to mercantile service as SS Munrio, operating under that name until 1937, when she was renamed SS Szent Gellert. She became SS Carola in 1940, SS Mary Louise in 1946 and SS Maria L. in 1950. She underwent two more name changes in 1950, to SS Tropic and then SS Nerina, before her long career came to an end when she was wrecked near Santa Cruz del Norte, Cuba, on 25 November 1950.