The Louisbourg Navy League Building, also known as the Navy League Hostel or the Navy Hut, stands as a historical gem on the harbor side of Main Street in Louisbourg, Nova Scotia. For a building that took 2 months too build , the Navy Hut  has weathered the past 80 years with grace. This distinctive two-and-a-half-storey wooden structure was constructed in the pivotal year of 1941, making it an emblem of wartime history. Its significance lies in being one of the rare remaining structures in Canada built during World War II by the Navy League of Canada, intended to serve as a hostel for merchant seamen and members of the Armed Forces.

Louisbourg Harbor has a rich history as a destination for seafarers dating back to the sixteenth century. The construction of a lighthouse in 1842 marked its enduring importance. By the end of the eighteenth century, the harbor had become a hub of industrial activity, serving as the terminus of the Sydney & Louisbourg Railway. During both World Wars, the harbor played a vital role as a safe haven, a staging area for convoys, and a refueling stop for ships.

The need for such a facility in Louisbourg during World War II was anticipated by the Louisbourg Community Club. In 1941, they collaborated with the Sydney branch of the Navy League of Canada to establish a place of entertainment for the increasing number of servicemen visiting the area.

The Navy League, founded in the United Kingdom in 1895 with a focus on naval defense, had a Canadian branch since the same year. During both World Wars, it played a significant role in recruiting naval and merchant navy personnel, operating hostels for seafaring men, and providing services to seamen's dependents.

The meeting between the Louisbourg Community Club and the Navy League was a success, leading to the official organization of the Louisbourg Navy League in October 1941. The Navy League generously funded the construction and furnishing of a building, with the contract awarded to J.W. Stephens of Sydney. The completed structure featured essential amenities like a kitchen, dry canteen, showers, toilets, a reading and writing room, and a main room for dancing and entertainment.

During the war, the Louisbourg Navy League Building became the focal point of Louisbourg, with local civilians actively participating in its operation. After the war, it continued to serve merchant seamen, and in 1955, it became the home of the Royal Canadian Sea Cadet Corps in Louisbourg. The building also hosted various community activities, including Brownies and military drumming instruction for the Fortress of Louisbourg Volunteers. In 1986, the Navy League sold the building to the Louisbourg Lions Club, and it has since changed hands into private ownership.

Today, the Navy League Building stands as a testament to the wartime efforts of the Navy League of Canada and the vibrant history of Louisbourg.