MacKinlay is a surname. Notable people with the surname include:
Andrew MacKinlay (born 1949), British politician Andrew MacKinlay (cricketer) (born 1967), South African cricketer Andrew MacKinlay (Nova Scotia politician) (1800–1867), Canadian politician Craig Mackinlay (born 1966), British politician James Mackinlay (1850–1917), English rugby union player Jock D. Mackinlay (born 1952), American computer and information scientist Leila Mackinlay (1910–1996), British writer of romance novels from 1930 to 1979 Shane Mackinlay (born 1965), Australian Catholic bishop
Given name MacKinlay Kantor (1904–1977), born Benjamin McKinlay Kantor, American journalist, novelist, and screenwriter
See also McKinlay McKinley Mackinlay's cuckoo-dove, (Macropygia mackinlayi)