Sir Giles Bullard KCVO CMG (24 August 1926 – 11 November 1992), was a British diplomat. His appointments included British Ambassador to Bulgaria and High Commissioner to the West Indies at the time of the American invasion of Grenada.
Giles Lionel Bullard was born in Oxford, England, one of five children of Sir Reader Bullard and his wife, Miriam Catherine (Biddy), née Smith (one of his brothers being the diplomat Sir Julian Bullard).
Bullard was educated at the Dragon School, Oxford, and at Blundell's School in Tiverton in Devon. He won a scholarship to Balliol College in Oxford, which he attended from 1944 to 1945, before three years of national service, including a year with the West African Rifles.
In 1948 Bullard returned to Balliol, where he was president of the junior common room, and played cricket and rugby for the college, and rugby for the university in 1950 and 1951, in the latter year as captain of the side that beat Cambridge 13–0 in the Varsity Match, Bullard contributing most of the Oxford score. In 1952 he captained the Oxford University RFC team which made an unbeaten tour of Japan. He graduated with a second in modern history in 1951. On 20 December 1952 he married Hilary Chadwick (d. 1978), daughter of J. C. Brooks, of London; they had two sons and two daughters.
After three years with a shipping firm, mostly in Norway, Bullard joined the foreign service in 1955, serving in Bucharest, Panama, Bangkok, and Islamabad. He had two home postings, in the mid-1960s to the personnel department of the Foreign Office, and in the mid-1970s as a senior inspector.