| Code | DS/UK/10391 |
| Name | Balfour; Robert Arthur Lytton (31 December 1902-28 November 1968); 3rd Earl of Balfour; Scottish peer |
| Variations of Name | Viscount Traprain |
| Dates | 31 December 1902-28 November 1968 |
| Gender | Male (cisgender) |
| Place of Birth/Origin | Scotland (born) |
| Relationships | Son of Gerald Balfour, 2nd Earl of Balfour and Elizabeth Balfour, Countess of Balfour
Nephew of Arthur Balfour (prime minister)
Spouse of Jean Lily West Roundel Cooke-Yarborough |
| Biography | Robert Arthur Lytton Balfour, 3rd Earl of Balfour, was a Scottish peer.
He rose to the rank of Lieutenant in the service of the Royal Naval Reserve and fought in the Second World War. |