Enniskillen Castle is located in Enniskillen, County Fermanagh, Northern Ireland. It was originally built in the 16th century and now houses Fermanagh County Museum and the regimental museum of the Royal Inniskilling Fusiliers and the 5th Royal Inniskilling Dragoon Guards.
The first Enniskillen Castle was built in this place by Hugh Maguire in the 16th century.  It featured heavily in the Irish rebellion against English rule in the 16th century and was taken after an eight-day siege in 1594. In 1607 it was rebuilt and renovated by captain William Cole. Riverside Tower in the south, known as Watergate, was added at this time. In the 18th century the castle was built as a castle Barracks.
The castle provided the main defense of the western part of the city and guarded Sligo road. It consists of two parts, a central tower and keep a defensive wall that was reinforced with small tower called Bartizans.  The design of the castle has strong Scottish influence. This can be particularly seen in Watergate having two corbelled circular Tourelles probably built about 1609.  Since then substantially increased. It is a State Care Historic Monument. 
Fermanagh County Museum
The castle is now home to the Fermanagh County Museum, which focuses on the county’s history, culture and natural history. Exhibits include the area’s prehistory, natural history, traditional rural life, local crafts and Belleek Pottery, and the history of the castle.
The castle also houses Inniskillings Museum, which is the regimental museum of the Royal Inniskilling Fusiliers and the 5th Royal Inniskilling Dragoon Guards. Displays include uniforms, medals, flags, regimental regalia, weapons and other military memorabilia.
- The courtyard of the castle
- Reconstruction of the castle
- The barracks were built within the walls
- Castles in Northern Ireland
- ^ Jump up to: abc “Enniskillen Castle” (PDF). Environment and Heritage Service NI – State Care of historical monuments. Pulled 03/12/2007.
- Jump up ^ O’Neill, B (ed). (2002). Irish castles and historic houses.London: Caxton Editions. p. 17.
- Fermanagh County Museum – Enniskillen Castle