Ballycowan Castle

{{Use dmy dates|date=May 2020}}

{{Use Irish English|date=May 2020}}

{{Infobox building

| name = Ballycowan Castle

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| image = Ballycowan Castle, Co. Offaly - geograph.org.uk - 942610.jpg

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| caption = Ballycowan Castle

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| building_type = Castle / Fortified House

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| location = Ballycowan, County Offaly, Ireland

| coordinates = {{coord|53.276419|-7.558745|display=inline,title}}

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| completion_date = 1589

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Ballycowan Castle is a castle located 4 km west of Tullamore, County Offaly. It was built in 1589 as a fortified house by Thomas Morres.

The castle was built on the previous site of the O’Molloy castle or tower house called Baile-mhic-Abhainn which was destroyed by a fire in 1557.{{Cite web |title=Ballycowan Castle, Co. Offaly. |url=http://www.thestandingstone.ie/2011/11/ballycowan-castle-co-offaly.html}}

The adjacent tower was built by Sir Jasper Herbert and his wife Lady Jane Finglas in 1626 on land given to them during plantations.{{citation needed|date=May 2020}}

During the Cromwellian period the southern end of the castle was blown up from a hill 100 yards away. The lands on which the castle stood were confiscated and handed over to the Earl of Mountrath in 1666.{{Cite report |url=http://www.omolloy.com/custom/public/files/ballycowan-castle-description.pdf |title=Ballycowan Castle}}