David Brand was the second son of Thomas Brand, who succeeded to the Viscountcy of Hampden in 1906. David’s grandfather, Henry Brand, 2nd Viscount Hampden, was Governor of New South Wales from 1895 to 1899. David’s elder brother Thomas succeeded their father as Viscount Hampden in 1958.
David attended Eton College, where he captained the First XI in 1921. He went up to Trinity College, Cambridge, but played only one first-class match for the university team, in May 1922. He spent the 1922–23 university year on a tour of Ceylon, Australia and New Zealand with the Marylebone Cricket Club. His highest first-class score was 60 in the second match against New South Wales, and his best bowling figures were 4 for 31 in the first match against Auckland. He played no further first-class cricket after the tour.
In the Second World War, serving with the Hertfordshire Regiment, he gained the rank of lieutenant-colonel. He served in Burma, and was mentioned in despatches. After the war he was chairman of the English, Scottish and Australian Bank and later deputy chairman of the ANZ Bank.
He succeeded his brother Thomas to the Viscountcy of Hampden in 1965. When he died in 1975 the title passed to his son Anthony.