Cowper ministry may refer to:
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Cowper ministry (1856), the second ministry of the Colony of New South Wales
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Cowper ministry (1857–59), the fourth ministry of the Colony of New South Wales
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Cowper ministry (1861–63), the seventh ministry of the Colony of New South Wales
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Cowper ministry (1865–66), the ninth ministry of the Colony of New South Wales
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Cowper ministry (1870), the twelfth ministry of the Colony of New South Wales
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