William Mostyn Owen, born William Mostyn, was a British land-owner and politician who sat in the House of Commons from 1774 to 1795.
- Occupation
- politician
- Position held
- member of the 14th Parliament of Great Britain, member of the 15th Parliament of Great Britain, member of the 16th Parliament of Great Britain, member of the 17th Parliament of Great Britain
- Born
- 1742
- Died
- March 11, 1795
