William Brewer

William Brewer may refer to:


 * William Brewer (justice) (died 1226), administrator and justice in England
 * William Briwere (died 1244), his nephew, medieval bishop of Exeter
 * William Henry Brewer (1828–1910), American botanist
 * William M. Brewer (died 1921), mayor of Omaha, Nebraska, 1873–1874
 * William J. Brewer (1843–1878), American soldier and Medal of Honor recipient
 * Billy Brewer (1935–2018), American football player and head coach
 * Billy Brewer (baseball) (born 1968), retired Major League Baseball player
 * Billy Brewer (footballer) (1893–1914), English footballer
 * William Brewer (MP) (1811–1881), British Member of Parliament for Colchester
 * William Brewer (sheriff) (died 1817), Sheriff of Norfolk County, Massachusetts 1811 to 1812
 * William D. Brewer (1922–2009), American diplomat