William Macdonald
William Macdonald or MacDonald or McDonald may refer to:
- William McDonald (Canadian politician) (1837–1916), Canadian politician from Nova Scotia, Canada
- William MacDonald (Christian author) (1917–2007), Plymouth Brethren scholar, theologian and former President of Emmaus Bible College
- William Macdonald (historian) (1863–1938), American journalist and historian, author of Three Centuries of American Democracy
- William Macdonald (priest) (1783–1862), Archdeacon of Wilts
- William MacDonald (RAF officer) (1908–1984), British air marshal
- William MacDonald (serial killer) (born 1924), Australian serial murderer
- William Alexander Macdonald (1860–1946), Manitoba, Canada politician
- William Andrew McDonald (1913–2000), American archaeologist
- William Archibald Macdonald (1841–1911), Irish nationalist politician and MP
- William Bell Macdonald (1807–1862), Scottish linguist
- William C. McDonald (governor) (1858–1918), former Governor of New Mexico
- William Chisholm Macdonald (1890–1946), Liberal party member of the Canadian House of Commons
- William Christopher Macdonald (1831–1917), Canadian tobacco manufacturer, philanthropist
- William Colt MacDonald (1891–1968), American writer of westerns
- William MacDonald (New Zealand politician) (1862–1920), New Zealand politician
- William H. McDonald, Texas Land Commissioner, 1937–1939
- William J. McDonald (1906–1989), rector of The Catholic University of America
- William Joseph McDonald (1904–1989), Irish-born bishop of the Catholic Church in the United States
- William J. MacDonald (writer and producer), American film and television writer and producer
- William John Macdonald (1832–1916), Canadian merchant and politician
- William Johnson McDonald (1844–1926), American banker who endowed an astronomical observatory
- William Josiah MacDonald (1873–1946), Michigan politician
- William Madison McDonald (1866–1950), African-American politician and businessman
- William Myron MacDonald (1890–1958), American-born Canadian flying ace
- William Ross Macdonald (1891–1976), Ontario, Canada lawyer, statesman
- William Sutherland Macdonald (1897–1990), Scottish physician, principle Medical Officer at the Ministry of Health
- William W. McDonald, American rancher and conservationist
- William Walter McDonald (1844–1929), politician from Northwest Territories, Canada
See also
- Bill McDonald (disambiguation)
- Bill MacDonald (disambiguation)
- Bill Macdonald, American sportscaster
- Will McDonald (born 1979), American basketball player
- Will McDonald (journalist) (born 1979), Australian television journalist
- Willie McDonald (1908–1979), Scottish footballer
- George William McDonald (1875–1950), politician in Manitoba, Canada