Arthur Thomas Daniel Porter III (26 January 1924 – 26 March 2019) was a Creole professor, historian, and author. His book on the Sierra Leone Creole people, Creoledom: A study of the development of Freetown society, examines their society in a way in which few books of their time period had, and it is one of the most quoted books on the Creoles. He was published in East Africa and the UK.