McInnis is a surname originating from the Isle of Skye. Notable people with the surname include:
David Lee McInnis (born 1973), American actorEvon McInnis (born 1980), Jamaican cricketerJ. Frank McInnis (1886–1959), American judgeJames McInnis (1855–1917), Prince Edward Island politicianJan McInnis, American stand-up comedianJeff McInnis (born 1974), American basketball playerJohn K. McInnis (1854–1923), Canadian educator and politicianJohn McInnis (c. 1880 – 1972), Canadian businessman and politicianJohn McInnis (1950–2003), Canadian politicianMarty McInnis (born 1970), American ice hockey playerNadine McInnis, Canadian writerScott McInnis (born 1953), American lawyer and politicianStanley McInnis (1865–1907), Canadian politicianStuffy McInnis (1890–1960), American baseball player