| Code | DS/UK/12214 |
| Name | Macmillan; Lady; Dorothy Evelyn (1900-1966); GBE; British peeress |
| Variations of Name | Dorothy Cavendish (née) |
| Dates | 1900-1966 |
| Gender | Female (cisgender) |
| Relationships | Wife of British Prime Minister Harold Macmillan. |
| Biography | Lady Dorothy Evelyn Macmillan (née Cavendish) GBE (28 July 1900 21 May 1966) was a daughter of the 9th Duke and Duchess of Devonshire and the wife of the British Prime Minister Harold Macmillan. |