River Finn or Finn River may refer to two rivers in Ireland:
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River Finn (Foyle tributary) — mainly flows through County Donegal, into the River Foyle
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Finn River (County Fermanagh and County Monaghan)
The Finn River (Irish: ''An Fhinn'' or ''Abhainn na Finne''), also known as the River Finn, is a small river that flows through parts of County Fermanagh and parts of County Monaghan in the south of Ulster, the northern province in Ireland.Monag ...
— a small river that flows into Upper Lough Erne
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