McGeer is a surname. Notable people with the surname include: Allison McGeer (born 1953), Canadian infectious diseases specialist Edith Graef McGeer (born 1923), American neuroscientist Gerry McGeer (1888–1947), Canadian lawyer and politician Manfred McGeer (1893–1955), Canadian politician Pat McGeer (1927–2022), Canadian physician and basketball player See also John McGeer House, a historic house in New York, United States