Ralph Campbell may refer to:
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Ralph Campbell Sr. (1915–1983), American postal worker and civil rights activist
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Ralph Campbell Jr. (1946–2011), his son, state auditor of North Carolina
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Ralph E. Campbell (1867–1921), United States federal judge
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Woody Campbell (basketball) (1925–2004), Canadian basketball player
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Ralph Abercromby Campbell, Chief Justice of the Bahamas, 1960–1970
{{hndis, Campbell, Ralph