Mair Eluned Garside (born Mair Eluned Rees, 30 August 1931 – 28 April 2018) was a Labour politician in London for more than 60 years. She was born in Cardiff in August 1931. She studied at Cardiff University. On 30 July 1954 at Maendy Congregational Chapel, Maindy, Glamorgan, she married Hugh Garside (1928-1993) from Macclesfield, Cheshire; they had met through the National Association of Labour Student Organisations. She was an active member of Llafur: The Welsh People's History Society and helped to establish a London branch.