Warren Lewis (1895–1973) was an Irish historian and British Army officer, and the brother of author C.S. Lewis

Warren Lewis may also refer to:

• Warren Lewis (footballer, born 1971), former South African association football player
• Warren Lewis (screenwriter), American film producer and screenwriter
• Warren Harmon Lewis (1870–1964), American biologist
• Warren K. Lewis (1882–1975), American chemical engineer
• Warren Lewis (Australian footballer) (1923–1988), Australian rules footballer

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