| Honorific-Prefix: | The Right Honourable |
| The Lord Hartwell | |
| Honorific-Suffix: | MBE |
| Office1: | Member of the House of Lords |
| Status1: | Lord Temporal |
| Term Label1: | as a hereditary peer |
| Term Start1: | 15 February 1995 |
| Term End1: | 11 November 1999 [1] |
| Predecessor1: | The 2nd Viscount Camrose |
| Successor1: | Seat abolished |
| Term Label2: | as a life peer |
| Term Start2: | 19 January 1968 |
| Term End2: | 3 April 2001 |
| Birth Date: | 18 May 1911 |
| Alma Mater: | Eton College Christ Church, Oxford |
William Michael Berry, Baron Hartwell MBE (18 May 1911 – 3 April 2001), was a British newspaper proprietor and journalist.
Berry was the second son of William Berry, 1st Viscount Camrose and his wife Mary Agnes Corns. He was educated at Eton and Christ Church, Oxford.
Berry followed his elder brother Seymour Berry, 2nd Viscount Camrose, as Chairman and Editor-in-Chief of the Daily and Sunday Telegraph newspapers. He remained in this role until the takeover by Conrad Black in 1986. He was also the backer behind the arts review, X magazine.[2]
Berry was awarded a life peerage as Baron Hartwell, of Peterborough Court in the City of London on 19 January 1968. He succeeded his elder brother as 3rd Viscount Camrose in 1995, but disclaimed the title.
Lord Hartwell married Lady Pamela Smith (1915–1982), daughter of F. E. Smith, 1st Earl of Birkenhead. They had four children together:[3]
Lord Hartwell died in Westminster, London,[4] on 3 April 2001 at the age of 89. He was succeeded in the viscountcy, the Camrose barony and baronetcy by his elder son, Adrian. The Hartwell barony became extinct.
| Escutcheon: | Argent three bars Gules over all a pile Ermine. |
| Crest: | A griffin sejant reguardant Sable collared Or. |
| Supporters: | Dexter a stag, sinister a wolf, Proper both collared Or and standing on a compartment with a well between paving to the dexter and grass to the sinister Proper. [5] |