USCGC Barbara Mabrity (WLM-559) is a Keeper-class coastal buoy tender of the United States Coast Guard.

[2] The Coast Guard exercised options for the fifth through tenth ships, including Barbara Mabrity, in February of 1997.

Barbara Mabrity, as all Keeper-class ships, has a strengthened "ice belt" along the waterline so that she can work on aids to navigation in ice-infested waters.

Higher grades of steel were used for hull plating in the ice belt to prevent cracking in cold temperatures.

During the 1846 Havana hurricane, the original lighthouse collapsed and twelve people, including five of Mabrity's six children were killed.

[15] Despite her loss, Mabrity continued her keeper duties at Key West until she was reported to have voiced Confederate sympathies and was fired at the age of 82.

[20] Rear Admiral Paul Paluta, commander of the 8th Coast Guard District was the featured speaker at the event.

In the wake of major hurricanes, Barbara Mabrity has been dispatched to survey and repair damage to buoys, and to reset those which have been moved off-station.

[22][23] The bulk of Barbara Mabrity's year is spent at sea tending her buoys, or in port maintaining the ship.

On her first day at sea, 13 August 1999, Barbara Mabrity was bound for Milwaukee from Marinette's shipyard where she was built.

As the nearest Coast Guard vessel, Barbara Mabrity was dispatched to the boat and rescued the six sailors aboard.

[24] The tow vessel Natalie Jean capsized and sank on 12 March 2018 in the Mississippi River with three crew aboard.

[26] The ship encountered a capsized vessel with two men hanging onto the side just southeast of St. George Island, Florida in April 2018.

They were found to be suffering from severe sunburn and swelling of their lower extremities due to the 27 hours they had spent in the water.

[27] On the day after Christmas 2000, the 800-foot long, fully laden tanker Westchester ran aground in the Mississippi River.

These include: In 2009,[31] 2011,[32] 2013,[33] 2015,[34] 2020,[35] and 2022[36] Barbara Mabrity delivered the Zulu leadership to downtown New Orleans to start the Lundi Gras festivities.

Rear Admiral Mary Landry, commander of the 8th Coast Guard District, was aboard for the 2011 trip.