William McKinley (disambiguation)

• William McKinley (fl. 19th century), U.S. Representative from Virginia (1810–1811)
• William B. McKinley (1856–1926), U.S. Representative and Senator from Illinois
• Bill McKinley (1910–1980), American baseball umpire in the American League, 1946–1965
• Bill McKinley (born 1949), American football player for the 1971 Buffalo Bills
• Jazz Gillum (1904–1966), full name William McKinley Gillum, harmonica player

See also

• Billy McKinlay, Scottish footballer and manager