Sarah Mary Josephine Winstedt (née O'Flynn; 4 April 1886 – 9 September 1972) was an Irish-born physician, surgeon and suffragist.
[1] She spent most of the period of 1913–1935 in British Malaya, and for her contributions to colonial healthcare she was posthumously inducted into the Singapore Women's Hall of Fame.
During this period, she was also active in the campaign for women's suffrage; she once spent a week on a hunger strike at HM Prison Holloway after attempting to storm parliament with a group of protesters.
While the hospital was under construction, she travelled across the countryside by elephant and bicycle to deliver care; these home visits helped to increase trust in Western medicine among the rural population.
She served in Malta, Thessaloniki, and Fort Pitt in Kent, and after the war's end in 1919 she accompanied Lady Muriel Paget on a humanitarian mission to Russia.