William O'Leary is the name of:
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William O'Leary (actor)
William O'Leary (born October 19, 1957) is an American actor. He is best known for playing Marty Taylor on ''Home Improvement'' (1994–1999).
Early life
He was born in Chicago, Illinois and started acting at the age of 7. He graduated from Hi ...
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William O'Leary (Irish politician)
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William O'Leary (British Army officer)
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William Hagarty O'Leary, 1874–1880, Member of Parliament
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William James O'Leary, New Zealand prospector
{{hndis, Oleary, William