Omar Faig Loman oglu Nemanzadeh was an Azerbaijani publicist, journalist, teacher, founder and owner of Gheyrat Press and co-founder of Molla Nasreddin magazine, public figure.
Ghiyāth al-Dīn Abū al-Fatḥ ʿUmar ibn Ibrāhīm Nīsābūrī, commonly known as Omar Khayyam, was a Persian polymath, known for his contributions to mathematics, astronomy, philosophy, and poetry. He was born in Nishapur, the initial capital of the Seljuk Empire. As a scholar, he was contemporary with the rule of the Seljuk dynasty around the time of the First Crusade.
Omar Rashad Tyree is an African-American novelist. He is known for his best-selling book For the Love of Money and Mayor for Life: The Incredible Story of Marion Barry, Jr. he co-authored with Marion Barry.
Omer Bartov is an Israeli-born historian. He is the Samuel Pisar Professor of Holocaust and Genocide Studies at Brown University, where he has taught since 2000. Bartov is a noted historian of the Holocaust and is considered one of the world's leading authorities on the subject of genocide. The Forward calls him "one of the foremost scholars of Jewish life in Galicia."
Omer Talon was a French humanist, a close ally of Petrus Ramus. Biographical details are few; and there are some quite serious bibliographical difficulties in distinguishing Talon and Ramus as authors.
Omniscriptum Publishing Group, formerly known as VDM Verlag Dr. Müller, is a German publishing group headquartered in Riga, Latvia. Founded in 2002 in Düsseldorf, its book production is based on print-to-order technology.
Omraam Mikhaël Aïvanhov was a Bulgarian philosopher, pedagogue, mystic, and esotericist. A leading 20th-century teacher of Western Esotericism in Europe, he was a disciple of Peter Deunov, the founder of the Universal White Brotherhood.
Onasander or Onosander was a Greek philosopher. He was the author of a commentary on the Republic of Plato, which is lost, but we still possess his Strategikos (Στρατηγικός), a short but comprehensive work on the duties of a general. It is dedicated to Quintus Veranius, consul in AD 49, and legate of Britain. It was the chief authority for the military writings of the emperors Maurice and Leo VI, and Maurice of Saxony, who consulted it in a French translation and expressed a high opinion of it.
