William Maxwell, 4th Baronet
William Maxwell, 4th Baronet is the name of the following people:
- William Maxwell, 4th Baronet (of Calderwood) († 1750), Scottish nobleman
- William Maxwell, 4th Baronet (of Monreith) († 1812), Scottish nobleman
- William Maxwell, 4th Baronet (of Cardoness) († 1844), Scottish nobleman
