List of Famous people named Otto

Karl Wilhelm Otto Lilienthal was a German pioneer of aviation who became known as the "flying man". He was the first person to make well-documented, repeated, successful flights with gliders. Newspapers and magazines published photographs of Lilienthal gliding, favourably influencing public and scientific opinion about the possibility of flying machines becoming practical. On 9 August 1896, his glider stalled and he was unable to regain control. Falling from about 15 m (50 ft), he broke his neck and died the next day.

Emil Otto Rasch was a high-ranking German Nazi official and Holocaust perpetrator, who commanded Einsatzgruppe C in northern and central Ukraine until October 1941. After World War II, Rasch was indicted for war crimes at the Einsatzgruppen trial, but the case was discontinued for medical reasons in 1948. He died in 1948 while in custody.

Otto Witte was a German circus acrobat and fantasist who said that he managed to be crowned King of Albania.

Baron Otto Gustav von Wächter was an Austrian lawyer, Nazi politician and a high-ranking member of the SS, a paramilitary organisation of the Nazi Party.

Otto Ramón Sonnenholzner Sper is an Ecuadorian radio broadcaster, politician, and economist who served as the 50th Vice President of Ecuador.

Otto Barić was a Croatian professional football player and manager.

Otto Everett Graham Jr. was an American professional football player who was a quarterback for the Cleveland Browns in the All-America Football Conference (AAFC) and National Football League (NFL). Graham is regarded by critics as one of the most dominant players of his era, having taken the Browns to league championship games every year between 1946 and 1955, winning seven of them. With Graham at quarterback, the Browns posted a record of 57 wins, 13 losses, and one tie, including a 9–3 win–loss record in the playoffs. While most of Graham's statistical records have been surpassed in the modern era, he still holds the NFL record for career average yards gained per pass attempt, with 8.63. He also holds the record for the highest career winning percentage for an NFL starting quarterback, at 0.810. Long-time New York Yankees owner George Steinbrenner, a friend of Graham's, once called him "as great of a quarterback as there ever was."

Otto Weininger was an Austrian thinker who lived in the Austro-Hungarian Empire. In 1903, he published the book Geschlecht und Charakter, which gained popularity after his suicide at the age of 23. Parts of his work were adapted for use by the Nazi regime. Weininger was a strong influence on Ludwig Wittgenstein, August Strindberg, and, via his lesser-known work Über die letzten Dinge, on James Joyce.

Otto Heinrich Kranzbühler was a German naval judge who represented defendant Grand Admiral Karl Dönitz before the International Military Tribunal at the Nuremberg Trials.

Otto Alencar is a Brazilian politician. He has represented Bahia in the Federal Senate since 2015. Previously he was vice-governor and governor of Bahia. He is a member of the Social Democratic Party.