McIlwain
McIlwain is a family name that may refer to :
- Charles Howard McIlwain (1871–1968), American historian
- David McIlwain (1921–1981), British science fiction author, known under the pseudonym Charles Eric Maine
- Stover McIlwain (1939–1966), American baseball player
- Wally McIlwain (1903-1963) American football player
- Zach McIlwain (* 1986), American former military officer and veteran representative