William Powlett Powlett was an English landowner who lived at Lainston House in Hampshire in the south of England. He was high sheriff in 1783 and a member of Parliament (1790-1796).
- Occupation
- politician
- Position held
- member of the 17th Parliament of Great Britain, High Sheriff of Hampshire
- Citizenship
- Kingdom of Great Britain
- Born
- March 18, 1758
- Died
- March 8, 1821
