Dunsany may refer to:
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Dunsany Castle and Demesne, County Meath, Ireland
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Baron of Dunsany, "Lord Dunsany" or "Dunsany", the holders of the Dunsany estate
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Dunsany, County Meath, a townland and hamlet, named for the adjacent castle and demesne
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Christopher Plunkett, 1st Baron of Dunsany (1410–1463), Irish peer
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Edward Plunkett, 18th Baron of Dunsany, the writer and playwright "Lord Dunsany"
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Dunsany's Chess, an asymmetric variant of chess created by Lord Dunsany
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Horace Plunkett, first head of the Department of Agriculture in Ireland and the pioneer of the cooperative movement there
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Randal Plunkett, 21st Baron of Dunsany, rewilding advocate and film director
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