Roger O'Shaughnessey or O'Shaughnessy may refer to:
- Sir Roger O'Shaughnessy, The O'Shaughnessy, Chief of the Name (died 1690)
- Sir Roger O'Shaughnessy of Kinelea, Irish Knight, known in Gaeilge as Ruaidhrí Gilla Dubh Ó Seachnasaigh (died 1569)
This disambiguation page lists articles about people with the same name.
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