William Allison may refer to:
William Allison (Wisconsin politician) (1827–1882), member of the Wisconsin State Assembly William B. Allison (1829–1908), early leader of the Iowa Republican Party William D. Allison (1861–1923), American lawman William Henry Allison (1838–1934), Canadian politician and school lands commissioner William Outis Allison (1849–1924), mayor of Englewood Cliffs, New Jersey A. M. Williamson (1858–1933), who wrote under the pen name William Allison William Race Allison (1812–1865), Australian politician and landowner See also Bill Allison (disambiguation) Will Allison (born 1968), American novelist and editor Allison Williams (disambiguation)