McKelvey is a surname. Notable people with the surname include:
Andrew McKelvey (1934–2008), American businessman Frank McKelvey (1895–1974), Irish painter Frank McKelvey Bell, Canadian soldier and writer George McKelvey (lawman), constable of Charleston, Arizona Territory George McKelvey (mayor), American politician George McKelvey (soccer), American soccer player Gerald McKelvey, American politician Grant McKelvey, Scottish rugby union coach and player Houston McKelvey (born 1942), Irish Anglican dean J. J. McKelvey (born 1980), American football player Jack Marston McKelvey (born 1941), American bishop Jim McKelvey (born 1965), American computer scientist Joan McKelvey, Canadian judge Joe McKelvey (died 1922), Irish republican John McKelvey (1847–1944), American baseball player Miguel McKelvey (born 1973/74), American billionaire Richard McKelvey (1944–2002), American political scientist Rob McKelvey (born 1969), American golfer Robert McKelvey, American football coach Susan Delano McKelvey, American botanist (1883-1964) Tara McKelvey, American journalist Trish McKelvey (born 1942), New Zealand cricketer Vincent Ellis McKelvey (1917–1987), American geologist William McKelvey (1934–2016), British politician