Margaret Wall, Baroness Wall of New Barnet

Margaret Mary Wall, Baroness Wall of New Barnet (, 14 November 1941 – 25 January 2017) was a British trade unionist and the national secretary and head of policy of AMICUS. She was Chair of the national committee of the Labour Party from 2001 to 2002.

Family Wall was born on 14 November 1941 in Golborne, Lancashire. She was daughter of machinist Thomas Mylott (1908–1970) and his wife Dorothy Mylott (, 1910–1996). She had two sisters.

On 22 September 1962, Wall married Peter Richard Wall. They had one son and divorced in 1990. On 29 January 1992, she remarried to Edwin Geoffrey Holdsworth . In 1976, Wall was appointed the full time regional officer for south-east England. She rose through the union organisation and later served as national secretary and head of policy. She was a supporter of Progress, which formed in 1996 to support party leader Tony Blair and his rebranded "New Labour" leadership.

Death Wall died from stomach cancer on 25 January 2017 at North London Hospice, Finchley, London.