McKinlay is a surname. Notable people with the surname include:
Adam McKinlay (1887–1950), member of the British House of Commons for a number of Scottish constituenciesBilly McKinlay (born 1969), former Scottish footballer, Reserve Team Manager of Fulham in London, EnglandBob McKinlay (1932–2002), Scottish footballer who played for Nottingham ForestDonald McKinlay (1891–1959), Scottish footballer (defender)Duncan E. McKinlay (1862–1914), U.S. Representative from CaliforniaJohn McKinlay (1819–1872), explorer of AustraliaKen McKinlay (1928–2003), international speedway riderTosh McKinlay (born 1964), Scottish former international footballerDr Edward McKinlay (born 1921), Scottish minister with The Presbyterian Church of CanadaDr. Kirt McKinlay MD. (born 1952) American doctor that currently resides in the state of IdahoMr. Michael McKinlay, Tasmanian, Professional Frankie Muniz Impersonator