Brian David Valentine Lindsay (born 22 January 1937) is an Australian politician.
He was a Liberal Party member of the Legislative Assembly of Queensland from 1974 until 1977, representing the electorate of Everton.
Lindsay was born in Ashgrove, the grandson of Labor Senator John MacDonald, and was educated at St Finbar's Convent and Marist Brothers College.
He attended the Royal Military College, Duntroon from 1955 to 1958, then entered the military, serving with the Pacific Islands Regiment from 1959 to 1963 and with the regular army in Papua New Guinea, Malaya, Borneo, and in the Vietnam War.
He differed from Premier Joh Bjelke-Petersen on the issue of death duties, favouring their removal more slowly than that sought by Bjelke-Petersen, and later antagonised gay and lesbian activists by, in response to debate about whether gay teachers should be allowed in Queensland, requesting assurance from the Education Minister that 'young men and women with such unfortunate and unnatural personal lifestyles are never admitted to the profession'.