French Presidents and Prime Ministers: 2 prime ministers
(prime minister) Ernest Courtot de Cissey (a.k.a. Octave)   1874-1875  
(prime minister) Raymond Barre (a.k.a. Octave)   1976-1981  
Notable Writers: 1 author
Octave Mirbeau   1848-1917  
Other Leaders: 1 prime minister
Prime Minister Pierre de Witasse (a.k.a. Octave)   1944-1948   Monaco