Barry Seán Desmond (born 15 May 1935) is an Irish former Labour Party politician who served as a Member of the European Court of Auditors from 1994 to 2000, Minister for Health from 1982 to 1987, Minister for Social Welfare from 1982 to 1986 and a Minister of State from 1981 to 1982. He served as a Member of the European Parliament (MEP) for the Dublin constituency from 1989 to 1994 and a Teachta Dála (TD) from 1969 to 1989.