MacKenna is usually a surname, and may refer to
Sir James MacKenna (1872–1940), British-Indian civil servant John MacKenna (born 1952), Irish playwright and novelist Juan Mackenna (1771–1814), military officer Kenneth MacKenna (1899–1962), American actor and director Stephen MacKenna (1872–1934), Irish linguist, journalist, translator and author Benjamín Vicuña Mackenna (1831–1886), Chilean politician and writer, grandson of the above Juan
See also Mackenna's Gold, 1969 western film McKenna (disambiguation) Kenna (disambiguation) Makena (disambiguation)