Flora Alzora Brewster (February 26, 1852 – February 1919) was an American physician, surgeon, journalist, medical editor, and inventor. She is remembered as Baltimore, Maryland's first woman surgeon. In Baltimore, she was a physician in charge of an institution caring for prostitutes and of a women's house of refuge. Later, she was the proprietor and surgeon in charge of a sanitarium. She was an ardent advocate of the higher medical education of women.