Namesakes
Gustave Flaubert
(m) 1821-1880 
Notable Writers
Gustave Eiffel
(m) 1832-1923
Notable Artists
Notable Scientists and Inventors
J. M. G. Le Clézio
(middle name Gustave) (m) 1940-
Nobel Prize Winners 2008 (literature)
Notable Writers
Gustave Courbet
(m) 1819-1877
Notable Artists
Gustave Doré
(m) 1832-1883
Notable Artists
Gaspard-Gustave de Coriolis
(m) 1792-1843
Notable Scientists and Inventors
Baudouin of Belgium
(middle name Gustave) (m) 1930-1993
Other Royalty 1951-1993 Belgium (king)
Michel Mayor
(middle name Gustave) (m) 1942-
Nobel Prize Winners 2019 (physics)
Notable Scientists and Inventors
René Coty
(middle name Gustave) (m) 1882-1962
French Presidents and Prime Ministers 1954-1959 (president)
Gustave Caillebotte
(m) 1848-1894
Notable Artists
Gustave Moreau
(m) 1826-1898
Notable Artists
Gustave Charpentier
(m) 1860-1956
Notable Musicians
Léon Delacroix
(middle name Gustave) (m) 1867-1929
Belgian Prime Ministers 1918-1920
Gustave Ador
(m) 1845-1928
Swiss Presidents 1919
Gustave Cabaret
(m) 1866-1917
Olympic Medalists 1908 archery - continental style 50 m (bronze)
Henri Lauvaux
(a.k.a. Gustave) (m) 1900-1970
Olympic Medalists 1924 cross country team (bronze)
Gustave Marinius Heiss
(m) 1904-1982
Olympic Medalists 1932 fencing (bronze)