Mary Pratt may refer to:
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Mary Pratt (painter) (1935–2018), Canadian painter
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Mary Pratt (baseball) (1918−2020), former pitcher
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Mary Louise Pratt (born 1948), professor of Spanish and Portuguese languages and literature
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Mary Ann Pratt, midwife and early member of the Latter Day Saint movement
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Mary Pradd, English woman murdered in 1876
{{hndis, Pratt, Mary