| Sir Daniel Lascelles | |
| Office: | British Ambassador to Japan |
| Term Start: | 1957 |
| Term End: | 1959 |
| Predecessor: | Sir Esler Dening |
| Successor: | Sir Oscar Morland |
| Primeminister: | Harold Macmillan |
| Office1: | British Ambassador to Afghanistan |
| Term Start1: | 1953 |
| Term End1: | 1957 |
| Predecessor1: | Eric Ralph Lingeman |
| Successor1: | Sir Michael Cavenagh Gillett |
| Monarch1: | Elizabeth II |
| Primeminister1: | Winston Churchill Anthony Eden |
| Office2: | British Ambassador to Ethiopia |
| Term Start2: | 1949 |
| Term End2: | 1951 |
| Predecessor2: | Himself (as Envoy Extraordinary and Minister Plenipotentiary) |
| Successor2: | Douglas Busk |
| Monarch2: | George VI Elizabeth II |
| Primeminister2: | Clement Attlee Winston Churchill |
| Birth Date: | 19 March 1902 |
| Education: | Royal Naval College, Osborne Royal Naval College, Dartmouth |
| Alma Mater: | Balliol College, Oxford |
| Relatives: | Henry Lascelles, 4th Earl of Harewood (grandfather) |
Sir Daniel William Lascelles KCMG (19 March 1902 – 17 October 1967) was a British diplomat.[1] He was the British Ambassador in Ethiopia, Afghanistan and Japan.
Lascelles was the son of the Honourable William Horace Lascelles, eighth son of Henry Lascelles, 4th Earl of Harewood. His mother was Madeline Barton, daughter of Reverend Gerrard Barton. He was educated at The New Beacon, Royal Naval College, Osborne, Isle of Wight; at the Royal Naval College, Dartmouth, Devon; and at Balliol College, Oxford.[1]
After an open competition in 1926, Lescelles earned a position and was subsequently appointed as a Third Secretary in the Diplomatic Service. In 1931, he was made Second Secretary. and in 1937, he was promoted to First Secretary. In 1945, he was invested as a Companion of the Order of St Michael and St George and he was promoted in the Foreign Office hierarchy.
In 1948, he was appointed Envoy Extraordinary and Minister Plenipotentiary to Addis Ababa and then Consul-General to the Empire of Ethiopia.[2] In 1949–1951, he became Ambassador to Ethiopia.[1] In 1953, he was appointed Ambassador in Kabul, Afghanistan. In 1954, he was invested as Knight Commander of the Order of St Michael and St George.[1]
Lescelles was appointed Ambassador in Tokyo in 1957. He served from 1957 through 1959.[3]
He died on 17 October 1967 at age 65.[1]