Namesakes
Armand-Emmanuel de Vignerot du Plessis, Duc de Richelieu
(m) 1766-1822 
French Presidents and Prime Ministers 1815-1818; 1820-1821 (prime minister)
Bismarck du Plessis
(m) 1984-
Notable Athletes (rugby)
Faf du Plessis
(m) 1984-
Notable Athletes (cricket)
Jannie du Plessis
(m) 1982-
Notable Athletes (rugby)
JP du Plessis
(m) 1991-
Notable Athletes (rugby)
Tinus du Plessis
(m) 1984-
Notable Athletes (rugby)