McMillian is a surname. Notable people with the surname include:
Audray McMillian (born 1962), American football playerGeraldine McMillian, American opera singerJerron McMillian (born 1989), American football playerJim McMillian (1948-2016), American basketball playerLennie McMillian (born 1959), Irish basketball playerMark McMillian (born 1970), American football playerMichael McMillian (born 1978), American actor and writerRodney McMillian (born 1969), American artistTheodore McMillian (1919–2006), American judgeWalter McMillian, American exonerated from death row