Otto Lederer
🌍 United States, Austria–Hungary
Otto Lesser
🌍 Kingdom of Prussia
Otto Liebe
🌍 Kingdom of Denmark
Otto Lilienthal
🌍 Kingdom of Prussia
Otto Liman von Sanders
🌍 Germany
Otto Loewi
🌍 Germany, United States, Austria
Otto Maass
🌍 Canada
Otto Marseus van Schrieck
🌍 Dutch Republic
Otto Meissner
🌍 Germany
Otto Mueller
🌍 Germany
Otto Nerz
🌍 Germany, German Empire, Weimar Republic, Nazi Germany
Otto Neurath
🌍 Austria
Otto Nicolai
🌍 Kingdom of Prussia
Otto Nordenskjöld
🌍 Sweden
Otto Ohlendorf
🌍 German Empire, Weimar Republic, Nazi Germany
Otto Orseolo
🌍 Republic of Venice
Otto Pfister
🌍 Germany
Otto Porter Jr.
🌍 United States
Otto Preminger
🌍 Austria, United States
Otto Pérez Molina
🌍 Guatemala
Otto Rank
🌍 Austria
Otto Rasch
🌍 German Empire, Weimar Republic, Nazi Germany
Otto Rehhagel
🌍 Germany
Otto Reinhold Jacobi
🌍 Kingdom of Prussia, Canada
Otto Robert Frisch
🌍 Austria, United Kingdom
Otto Roehm
🌍 United States
Otto Ruge
🌍 Norway
Otto Rühle
🌍 German Reich, Germany
Otto Sander
🌍 Germany
Otto Scheff
🌍 Austria
Otto Schily
🌍 Germany
Otto Schott
🌍 Germany
Otto Siffling
🌍 German Reich
Otto Sinding
🌍 Norway
Otto Skorzeny
🌍 Austria
Otto Stern
🌍 Germany, United States
Otto Stich
🌍 Switzerland
Otto Strandman
🌍 Russian Empire, Estonia
Otto Strasser
🌍 Germany
Otto Struve
🌍 Russian Empire, United States
Otto Sverdrup
🌍 Norway
Otto Tief
🌍 Estonia
Otto Toeplitz
🌍 German Reich
Otto Waalkes
🌍 Germany
Otto Wagner
🌍 Austrian Empire, Cisleithania
Otto Wahle
🌍 Austria, United States
Otto Wallach
🌍 German Empire
Otto Warmbier
🌍 United States
Otto Weddigen
🌍 German Empire
Otto Weininger
🌍 Cisleithania
Otto Wels
🌍 German Reich
Otto Wichterle
🌍 Czech Republic, Czechoslovakia, Austria–Hungary
Otto Wilhelm Hermann Abich
🌍 Kingdom of Prussia, Russian Empire
Otto Wilhelm Thomé
🌍 Germany
Otto Wilhelm von Struve
🌍 Russian Empire, German Empire
Otto of Bamberg
🌍 Germany
Otto of Freising
🌍 Germany
Otto of Greece
🌍 Kingdom of Bavaria, Kingdom of Greece
Otto of Nordheim
🌍 Germany
Otto the Great
🌍 Holy Roman Empire