William O'Neal may refer to:
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William O'Neal (informant)
William O'Neal (April 9, 1949 – January 15, 1990) was an American FBI informant in Chicago, Illinois, where he infiltrated the local Black Panther Party (BPP). He is known for being the catalyst of the 1969 police/FBI assassination of Fred Ha ...
(1949–1990), American FBI informant
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William O'Neal Lockridge (1947–2011), American political activist
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William R. O'Neal (1864–1946) American lawyer and businessman
See also
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William O'Neil (disambiguation) William O'Neil (1933–2023) was an American businessman and stockbroker.
William O'Neil may also refer to:
*William O'Neil (Wisconsin politician)
William O'Neil (September 20, 1848March 3, 1917) was an American merchant, temperance advocate, a ...
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William O'Neill (disambiguation)
{{hndis, Oneal, William