OT or Ot may refer to:
The Ottoman Empire (/ˈɒtəmən/; Ottoman Turkish: دولت عليه عثمانیه, Devlet-i ʿAlīye-i ʿOsmānīye; Modern Turkish: Osmanlı İmparatorluğu or Osmanlı Devleti), also known as the Turkish Empire, Ottoman Turkey, was an empire and a great power, founded at the end of the thirteenth century in northwestern Anatolia in the vicinity of Bilecik and Söğüt by the Oghuz Turkish tribal leader Osman.
Ottawa (/ˈɒtəwə/ or /ˈɒtəwɑː/; French pronunciation: [ɔtawa]) is the capital city of Canada. It stands on the south bank of the Ottawa River in the eastern portion of southern Ontario.
Otto Eduard Leopold, Prince of Bismarck, Duke of Lauenburg (1 April 1815 – 30 July 1898), known as Otto von Bismarck (German pronunciation: [ˈɔtoː fɔn ˈbɪsmark]), was a conservative Prussian statesman who dominated German and European affairs from the 1860s until 1890. In the 1860s, he engineered a series of wars that unified the German states, significantly and deliberately excluding Austria, into a powerful German Empire under Prussian leadership.
Othello (The Tragedy of Othello, the Moor of Venice) is a tragedy by William Shakespeare, believed to have been written in 1603. It is based on the story Un Capitano Moro ("A Moorish Captain") by Cinthio, a disciple of Boccaccio, first published in 1565. The story revolves around four central characters: Othello, a Moorish general in the Venetian army; his beloved wife, Desdemona; his loyal lieutenant, Cassio; and his trusted but ultimately unfaithful ensign, Iago.
Otitis media is a group of inflammatory diseases of the middle ear. The two main types are acute otitis media (AOM) and otitis media with effusion (OME).
Otto von Habsburg (20 November 1912 – 4 July 2011), also known by his traditional royal titulature of Archduke Otto of Austria, was the last Crown Prince of Austria-Hungary from 1916 until the dissolution of the empire in 1919, a realm which comprised modern-day Austria, Hungary, Bosnia and Herzegovina, Croatia, the Czech Republic, Slovakia, Slovenia, and parts of Italy, Montenegro, Poland, Romania, Serbia and Ukraine.
The Ottawa Senators (French: Sénateurs d'Ottawa) are a professional ice hockey team based in Ottawa, Ontario, Canada.
Otto I (23 November 912 – 7 May 973), traditionally known as Otto I the Great (German: Otto I. der Große), was German king from 936 and emperor of the Holy Roman Empire from 962 until his death in 973. He was the oldest son of Henry I the Fowler and Matilda.
Otis Ray Redding, Jr. (September 9, 1941 – December 10, 1967) was an American singer, songwriter, record producer, arranger, and talent scout.