William H. Smith
William H. Smith may refer to:
- William H. Smith (boxer), South African boxer of the 1920s
- William H. Smith (Medal of Honor), Medal of Honor recipient
- William H. Smith (Connecticut politician), warden of the Borough of Norwalk, Connecticut
- William Hugh Smith, Governor of Alabama
- William [Henry Smith (1792–1865)], founder of the WHSmith chain of newsagents
- William Henry Smith (1825–1891), son of the founder of WHSmith, businessman and politician
- William Henry Smith (American politician), newspaper editor and Republican politician in Ohio
- William Henry Smith (Canadian politician), lawyer and political figure in Nova Scotia, Canada