David or Dave McCarthy may refer to:
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David McCarthy (politician) (1920s–1973), unionist politician in Northern Ireland
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David McCarthy (sprinter) (born 1983), Irish sprint athlete from Dublin who medalled at the 2004 World Indoors
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David McCarthy (long-distance runner) (born 1988), Irish long-distance athlete from Waterford who medalled at the 2009 European Under-23s
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David J. McCarthy Jr., dean of the Georgetown University Law Center
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David J. McCarthy, American numismatist, author and researcher
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Dave McCarthy (Gaelic footballer) (born 1949), Irish Gaelic football player
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Dave McCarthy (hurler) (born 1994), Irish hurler
{{hndis, Maccarthy, David