River Triogue

{{Short description|River in Ireland}}

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The River Triogue ({{langx|ga|An Trióg}}) is a river that flows through the county of Laois in Ireland. It is a tributary of the River Barrow.

It has its source in the Cullenagh Hills, south of Portlaoise.{{cite web|url=http://www.wfdireland.ie/docs/1_River%20Basin%20Management%20Plans%202009%20-%202015/SERBD%20RBMP%202010/Water%20Management%20Unit%20Action%20Plans/Barrow%20Owenass%20Triogue%20WMU%20Mar%202010.pdf |title= Barrow Owenass Triogue Water Management Unit Action Plan |publisher=wfdireland.ie|accessdate=2016-03-21}} It enters the town of Portlaoise from the south, passing under Main Street and flows north before joining the River Barrow at Clonterry north east of Mountmellick.