Victor Frederick William Cavendish-Bentinck, 9th Duke of Portland,, known as Victor Cavendish-Bentinck until 1977 and Lord Victor Cavendish-Bentinck from 1977 to 1980, and informally as Bill Bentinck, was a British diplomat, businessman, and peer. He served as Chairman of the Joint Intelligence Committee during World War II and British Ambassador to Poland between 1945 and 1947.
- Occupation
- diplomat, politician, ambassador
- Position held
- ambassador of the United Kingdom to Poland, member of the House of Lords
- Citizenship
- United Kingdom, United Kingdom of Great Britain and Ireland
