Oto

Oto, Ōtō, or OTO may refer to:

• Oto (name), including a list of people with the name
• The Otoe tribe (also spelled Oto), a Native American people

• Oto, Spain, a village in the Valle de Broto, in Huesca, Aragon

• Ōtō, Fukuoka
• Ōtō, Nara, merged into Gojō in 2005
• Ōtō, Wakayama, merged into Tanabe in 2005

• Oto, Iowa
• Oto, Missouri
• Oto Reservation, formerly located in southeastern Nebraska
• OTO Homestead and Dude Ranch, Montana

• Greta oto, a butterfly of family Nymphalidae
• Ordo Templi Orientis, organization centered on the Law of Thelema
• Oto (album), the third album by Fluke, released in 1995
• OTO Awards, a Slovak awards show
• Otocinclus, a genus of armored catfish
• Zebra oto
• Oto-Manguean languages, a large family comprising several families of Native American languages
• Oto-Pamean languages
• Oto Melara, an Italian defense company, formerly known as Odero Terni Orlando
• OTO (Slovenian TV channel), part of media company Pro Plus
• Seibi Oto, a fictional character in the anime series Sky Girls
• Osu! Tatakae! Ouendan!, a 2005 rhythm video game

• Aloadae, Greek mythological figures also known as Otos
• Otoe (disambiguation)
• Otology, a branch of medicine which studies the ear
• Otos, Valencia, Spain