William Mansel
William Mansel is the name of the following people:
- William Mansel, 7th Baronet (1670 – around 1732), British nobleman
- William Mansel, 9th Baronet (1739–1804), British nobleman
- William Mansel, 10th Baronet (1766–1829), British nobleman
See also:
- William Monsell, 1st Baron Emly (1812-1894), British politician