| Ottawa | Ottoman Empire | Ottoman |
| Otto Dix | Otto von Bismarck | Othello |
| OthoMarcus Salvius Otho ( April 25, 32 April 16, 69) was Roman Emperor from January 15 to April 16, in 69 AD, the Year of the four emperors. Otho belonged to an ancient and noble Etruscan family settled at Ferentinum (modern Ferento, near Viterbo) in Etruria. | OtolaryngologyOtolaryngology is the branch of medicine that specialises in the diagnosis and treatment of ear, nose, throat, and head & neck disorders. The full name of the specialty is otolaryngology-head and neck surgery. Practitioners are called otolaryngologists-he | Ottoman TurksThe Ottoman Turks were the ethnic subdivision of the Turkic people who dominated the ruling class of the Ottoman Empire. The Ottomans were first known to the west in 1227, when they fled the Mongol Empire into the Seljuk Empire in what is now called Anato |
| OttonianOttonian dynasty is a name sometimes given to a ruling dynasty of German kings, sometimes regarded as the first dynasty of the Holy Roman Empire. Also known as the Saxon dynasty. Although never Emperor, Henry I the Fowler, Duke of Saxony, was arguably the | Otto Wilhelm Hermann von AbichOtto Wilhelm Hermann von Abich ( December 11, 1806 July 1, 1886) was a German mineralogist and geologist. He was born at Berlin and educated at the local university. His earliest scientific work is related to spinels and other minerals. Later he made spec | Ottawa SenatorsThe Ottawa Senators are an ice hockey team based in Ottawa, Canada. They play in the North-American National Hockey League. Founded: 1992- 1993 (franchise awarded December 6, 1990) :Arena: Corel Centre (capacity 18,500) :Uniform colours: black, red, gold, |
| OtakuIn English, an otaku (plural usually otaku though otakus is not unknown) is a variety of geek (or an overly obsessed fanboy/ fangirl) specializing in anime and manga. The word is a loanword from the Japanese language, in which it is derived from an honori | Otaku no VideoOtaku no Video is a comedy anime spoofing the life and culture of otaku, or Japanese media fans, as well as the history of Gainax, its creators. It is noted for its mix of conventional documentary film styles (with actual film, no less), with a more tradi | Otto JespersenOtto Jespersen is also the name of a famous Norwegian comedian. Otto Jespersen ( July 16, 1860- April 30, 1943) was a Danish linguist who specialized in the grammar of the English language. He was born in Randers in northern Jutland and attended Copenhage |
| Otto IV, Holy Roman Emperor | Otto Preminger | Otto III, Holy Roman Emperor |
| Otto II, Holy Roman Emperor | Otto I, Holy Roman Emperor | Otto Hahn |
| Otter | Otto von Guericke | Otto Neurath |
| Othmar Ammann | Otto Harbach | Otsego County, New York |
| Otto of Bamberg | Otaniemi | Otelu Rosu |
| Otto of Savoy | Othniel | Otto Rank |
| Ottawa Lynx | Otto Skorzeny | Ottawa River |
| Otus | Otrera | Otello |
| Ottawa (disambiguation) | Otta | Ottawa County, Oklahoma |
| Ottawa County, Ohio | Otero County, New Mexico | Otoe County, Nebraska |
| Otter Tail County, Minnesota | Ottawa County, Michigan | Otsego County, Michigan |
| Ottawa County, Kansas | Otero County, Colorado | Otago |
| Otway National Park | Otis, Colorado | Otter Creek, Florida |
| Otterville, Illinois | Ottawa, Illinois | Otterbein, Indiana |
| Ottosen, Iowa | Ottumwa, Iowa | Otho, Iowa |
| Oto, Iowa | Ottawa, Kansas | Otis, Kansas |
| Otis, Maine | Otisfield, Maine | Otis, Massachusetts |
| Otsego, Michigan | Otsego Township, Michigan | Otisville, Michigan |
| Otisco Township, Michigan | Otto Township, Michigan | Otsego Lake Township, Michigan |
| Otrey Township, Minnesota | Otter Tail Peninsula Township, Minnesota | Oteneagen Township, Minnesota |
| Ottawa Township, Minnesota | Otter Tail Township, Minnesota | Ottertail, Minnesota |
| Otto Township, Minnesota | Otisco Township, Minnesota | Otsego, Minnesota |
| Otterville, Missouri | Otoe, Nebraska | Otto, New York |
| Otselic, New York | Otisco, New York | Otisville, New York |
| Otsego, New York | Ottawa Hills, Ohio | Ottawa, Ohio |
| Ottoville, Ohio | Otway, Ohio | Otto Township, Pennsylvania |
| Otter Creek Township, Pennsylvania | Othello, Washington | Otis Orchards-East Farms, Washington |
| Otsego, Wisconsin | Otter Creek, Dunn County, Wisconsin | Otter Creek, Eau Claire County, Wisconsin |
| Ottawa, Wisconsin | Otter Creek, Wisconsin | Otterup |
| Ottoline Morrell | Otis Redding | Otto von Habsburg |
| Otto Frederick Rohwedder | Otter Lake, Michigan | Otley |
| Otsego | Otto Stich | Otranto |
| Otto Klemperer | Ottoman reform efforts between 1789 and 1849 | Ottavio Farnese, Duke of Parma |
| Ottignies-Louvain-la-Neuve | Otto Pfleiderer | Otto Wallach |
| Otto von Kotzebue | Otto II van Lippe | Ottaviano Petrucci |