William T. Smith (disambiguation)

William T. Smith (1916–2010) was an American farmer and politician from New York. William T. Smith may also refer to:

• William Trickett Smith (1937–2021), American lawyer who was disbarred
• William Trickett Smith II (born 1981), his son, American drug trafficker convicted of murdering his wife in Peru in 2007
• William Thomas Smith (1896–1994), World War I flying ace
• William Tyler Smith (1815–1873), English obstetrician, medical writer and journalist
• William T. "Wee Willie" Smith (1911–1992), American professional basketball player