Reinøya may refer to:
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Reinøya, Troms – an island in the Karlsøy municipality in Troms
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Reinøya, Vardø – an island in the Vardø municipality in Finnmark
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Reinøya, Porsanger – an island in the Porsanger municipality in Finnmark
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Reinøya, Sør-Varanger – an island in the Sør-Varanger municipality in Finnmark
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Reinøya, Måsøy – an island in the Måsøy municipality in Finnmark
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