Sir Geoffrey Jellicoe (1900—1996) was an English landscape architect, garden designer, Architect and author.
Jellicoe was born in Chelsea. He studied at the Architectural Association in London in 1919 and won a Rome Scholarship in 1923 which enabled him to research his first book Italian Gardens of the Renaissance with Jock Shepherd. This pioneering study did much to re-awaken interest in this great period of landscape design and through its copious photographic illustrations publicised the then perilously decayed condition of many of the gardens. In 1929 he was a founding member of the Landscape Institute and from 1939-49 he was its President. In 1948 he became the founding President of the International Federation of Landscape Architects (IFLA). From 1954-68 he was a member of Royal Fine Art Commission and from 1967-74 a Trustee of Tate Gallery. He died in 1996, the best-known English landscape architect of his generation.