Alexander Cunningham, war ein britischer Diplomat, Historiker und Schachspieler. Auf ihn wird das Cunningham-Gambit zurückgeführt. Eine Reihe biografischer Parallelen wurden Grund einer zeitweiligen Verwechslung mit dem Gelehrten und Schachspieler Alexander Cunningham of Block.
Alexander Davidovich Dallin was an American historian, political scientist, and international relations scholar at Columbia University, where he was the Adlai Stevenson Professor of International Relations and the director of the Russian Institute. Dallin was also the Raymond A. Spruance Professor of International History at Stanford University, and served as Director for the Center for Russian and East European Studies.
Alexander Gennadievich Danilin is a Russian psychotherapist, psychiatrist and physician-narcologist, author of ten books, numerous articles, lectures and trainings on addiction psychology and existential psychotherapy.