William Maxwell
William Maxwell is the name of the following people:
- William Maxwell, 5th Lord Herries of Terregles († 1604), Scottish nobleman
- William Maxwell (medic) , Scottish medic
- William Maxwell, 1st Baronet (around 1635–1709), Scottish nobleman
- William Maxwell, 2nd Baronet (of Calderwood) (around 1640–1703), Scottish nobleman
- William Maxwell, 3rd Baronet (of Calderwood) († 1716), Scottish nobleman
- William Maxwell, 5th Earl of Nithsdale (1676–1744), Scottish nobleman
- William Maxwell, 4th Baronet (of Calderwood) († 1750), Scottish nobleman
- William Maxwell, 2nd Baronet (of Springkell) (1703–1760), Scottish nobleman
- William Maxwell, 3rd Baronet (of Monreith) (around 1715–1771), Scottish nobleman
- William Maxwell, 3rd Baronet (of Springkell) (1739-1804), Scottish nobleman
- William Maxwell, 4th Baronet (of Monreith) († 1812), Scottish nobleman
- William Maxwell, 7th Baronet (1754–1837), Scottish nobleman
- William Maxwell, 5th Baronet (1779–1838), Scottish nobleman
- William Maxwell, 8th Baronet (1793-1865), Scottish nobleman
- William Maxwell, 4th Baronet (of Cardoness) († 1844), Scottish nobleman
- William Maxwell, 6th Baronet (1805–1877), Scottish nobleman
- William Maxwell, 3rd Baronet (of Cardoness) (1809–1886), Scottish nobleman
- William Maxwell, 9th Baronet (1818–1878), Scottish nobleman
- William Maxwell, 10th Baronet (1828–1885), Scottish nobleman
- William Maxwell (Cooperative) Scottish politician and cooperative
- William Maxwell (soccer player) (1876-1940), Scottish soccer player and coach
- William Maxwell (writer) (1908–2000), American journalist and writer
- William Stirling-Maxwell (1818–1878), Scottish politician, art historian and collector
- William Edward Maxwell (1846–1897), British colonial governor
- William George Maxwell (1871–1959), British colonial administrator
- William Sutherland Maxwell (1874–1952), Canadian architect
