Dorothy Mary Donaldson, Baroness Donaldson of Lymington, GBE, DStJ (née Warwick, 29 August 1921 – 4 October 2003), previously known as Dame Mary Donaldson, was the first female Lord Mayor of London (1983–84). Born at Wickham, Hampshire, the daughter of an ironmonger and a school teacher, Donaldson trained as a nurse during the war and qualified in 1946.