Isabella Macdonald Macdonald (1856–1947) was one of the first women to graduate as a medical doctor after training in the United Kingdom; she was awarded a Bachelor of Medicine and a Licence of the Society of Apothecaries in 1888, from the London School of Medicine for Women.
She went on to have a long career, including as a consultant at the Elizabeth Garrett Anderson Hospital.
She practiced initially, for three years, as the resident physician at Cama Hospital, Mumbai, returning to the UK with ill-health.
Thereafter she worked for many years at the Elizabeth Garrett Anderson Hospital, rising to the level of consultant physician and retiring in 1925.
She maintained a private practice operating from her house in Seymour Street, Portman Square until 1940, when the property was destroyed as the result of a wartime bombing.