Otfried Preußler was a German children's books author. More than 50 million copies of his books have been sold worldwide and they have been translated into 55 languages. His best-known works are The Robber Hotzenplotz and The Satanic Mill (Krabat).
Othmar Spann was a conservative Austrian philosopher, sociologist and economist. His radical anti-liberal and anti-socialist views, based on early 19th century Romantic ideas expressed by Adam Müller et al. and popularized in his books and lecture courses, helped antagonise political factions in Austria during the interwar years.
Othniel Charles Marsh was an American professor of paleontology at Yale College and president of the National Academy of Sciences. He was one of the preeminent scientists in the field of paleontology. Among his legacies are the discovery or description of dozens of new species and theories on the origins of birds.
Otia Ioseliani was a Georgian prose writer and dramatist, whose plays have been successfully staged in Georgia as well as in other countries of the former Soviet Union and East Germany.
Otis Adelbert Kline born in Chicago, Illinois, USA, was a songwriter, an adventure novelist and literary agent during the pulp era. Much of his work first appeared in the magazine Weird Tales. Kline was an amateur orientalist and a student of Arabic, like his friend and sometime collaborator, E. Hoffmann Price.
Oʻtkir Hoshimov was an Uzbek writer, playwright, journalist, and literary translator. His most popular work is his 1985 novel Ikki eshik orasi, for which he received the State Hamza Prize. In 1991, he became a People's Writer of the Uzbek SSR.
Otmar Issing is a German economist who served as a member of the Executive Board of the European Central Bank from 1998 to 2006 and concurrently as ECB chief economist. He developed the 'two-pillar' approach to monetary policy decision-making that the ECB has adopted. After leaving the Executive Board, Issing been serving as president of the Center for Financial Studies since 2006.
