Namesakes
Austrian Chancellors and Presidents:
1 president
(president) Theodor Körner 1951-1957 
Danish Prime Ministers:
1 prime minister
Carl Theodor Zahle 1909-1910; 1913-1920
German Chancellors and Presidents:
1 president
(president) Theodor Heuss 1949-1959
Nobel Prize Winners:
2 medicine, 1 chemistry, 1 literature, 1 physics
(literature) Theodor Mommsen 1902
(medicine) Emil Theodor Kocher 1909
(chemistry) Theodor Svedberg 1926
(medicine) Hugo Theorell (a.k.a. Theodor) 1955
(physics) Theodor W. Hänsch 2005
Norwegian Prime Ministers:
1 prime minister
Abraham Berge (a.k.a. Theodor) 1923-1924
Notable Activists and Revolutionaries:
1 political activist
(political activist) Theodor Herzl 1860-1904
Notable Actors and Entertainers:
1 comedian
Theo Von (a.k.a. Theodor) 1980-
Notable Athletes:
2 soccer
(soccer) Theodor Gebre Selassie 1986-
(soccer) Theódór Elmar Bjarnason 1987-
Notable Filmmakers:
1 director
Carl Theodor Dreyer 1889-1968
Notable Philosophers and Thinkers:
1 historian, 1 sociologist
Theodor Mommsen 1817-1903
Theodor W. Adorno 1903-1969
Notable Scientists and Inventors:
1 biologist, 1 chemist, 1 physician, 1 physicist
Theodor Schwann 1810-1882
Emil Theodor Kocher 1841-1917
Theodor Svedberg 1884-1971
Theodor W. Hänsch 1941-
Notable Writers:
3 authors
E. T. A. Hoffmann (a.k.a. Theodor) 1776-1822
Theodor Mommsen 1817-1903
Theodor Geisel "Dr. Seuss" 1904-1991
Olympic Medalists:
1 bronze, 1 silver
(silver) Ernst Wide (a.k.a. Theodor) 1912 3000 m team
(bronze) Theodor Nauman 1920 water polo
Romanian Presidents and Prime Ministers:
2 prime ministers
(prime minister) Theodor Rosetti 1888-1889
(prime minister) Theodor Stolojan 1991-1992