Sir William Barker, 5th Baronet of Grimston Hall, Suffolk was a British Tory politician who sat in the House of Commons between 1708 and 1731.
- Occupation
- politician
- Position held
- member of the 2nd Parliament of Great Britain, member of the 3rd Parliament of Great Britain, member of the 4th Parliament of Great Britain, member of the 6th Parliament of Great Britain
- Citizenship
- Kingdom of Great Britain, Kingdom of England
- Born
- 1685
- Died