McWhinney is a surname. Notable people with the surname include:
Madeline McWhinney Dale (1922–2020), American economist and banker Agnes McWhinney (1891–1987), Australian lawyer Alec Mawhinney (1894–1967), Australian rules footballer Glenn McWhinney (1930–2012), Canadian football player Ian McWhinney (1926–2012), English physician and academic Jeff McWhinney (born 1960), Irish deaf social entrepreneur and activist Peter McWhinney (born 1956), Australian golfer Ted McWhinney (1924–2015), Canadian lawyer, academic and politician
See also McWhinney point Grady McWhiney (1928–2006), American historian