Otto is a given name of Germanic origin, including a list of persons and fictional characters with the name.
Otto or otto may also refer to:
Arts and entertainment Otto – Der Film, a 1985 German film Otto; or, Up with Dead People, a 2008 zombie film Otto (Greyhawk), a wizard in the World of Greyhawk campaign setting for the Dungeons & Dragons roleplaying game Evil Otto, the enemy smiley face from the 1980s video game Berzerk
Business Ottomotto, using trade name Otto, an autonomous trucking company OTTO Motors, self-driving factory robots Otto., Finland's interbank network Otto GmbH (Otto Group), a German retailer Otto Flugmaschinenfabrik, a 1910s German aircraft manufacturer
People Otto the Great (912–973), East Frankish king and Holy Roman Emperor Otto II, Holy Roman Emperor (955–983) Otto III, Holy Roman Emperor (980–1002) Otto IV, Holy Roman Emperor (1175/1176–1218) Otto, Count of Cleves (1278–1310) Otto, Count of Lippe-Brake (1589–1657) Otto, Duke of Lolland and Estonia (1310–1346) Otto, Count of Looz (fl. 980-1000) Otto, Count of Vermandois (979–1045) Otto, Landgrave of Hesse-Kassel (1594–1617) Otto, Lord of Arkel (1330–1396) Otto, Lord of Lippe (1300–1360) Otto, Margrave of the Nordmark (died 1057) Otto (singer) (born 1968), Brazilian singer Otto Waalkes (born 1948), known mononymously as Otto, German comedian Otto (surname)
Places Otto, Indiana, US Otto, New York, US Otto, North Carolina, US Otto, West Virginia, US Otto, Wyoming, US Otto Township (disambiguation) Mount Otto, a mountain in Colorado, US 2962 Otto, a main-belt asteroid
World War II Operation Otto, the Axis operational codename for the 1938 annexation of Austria Operation Otto (1943), an Axis 1943 anti-partisan operation in Croatia
Other uses Hurricane Otto (disambiguation) Otto (dog breed), a breed also known as the Alapaha Blue Blood Bulldog Otto the Orange, the mascot of Syracuse University Otocinclus, genus of sucking catfish, often known as 'Otto' MV Otto, a German coaster Otto Celera 500L, an experimental American business and utility aircraft built by Otto Aviation
See also Otto cycle, the thermodynamic cycle of a typical reciprocating piston engine Otto engine, an early internal combustion engine invented by Nicolaus Otto Auto (disambiguation) Otho (disambiguation) Oto (disambiguation) Otto's (disambiguation)