Omo or OMO may refer to: Geography Ethiopia Omo River (Ethiopia), in southern Ethiopia is the largest Ethiopian river outside the Nile Basin and namesake for all the topics below Omo Nada, one of the woredas in the Oromia Region of Ethiopia South Omo Zone, a zone in the Ethiopian Southern Nations, Nationalities and Peoples' Region (SNNPR) Omo National Park, Ethiopia Omo Kibish Formation, an East African rock formation Omo remains, a collection of hominid bones Elsewhere Omo River(Yamanashi) Omø, an island in Denmark Omo River (Quebec), a tributary of Maicasagi River in Quebec, Canada People Omo Osaghae (born 1988), American hurdler Suleiman Omo (born 1985), Nigerian footballer for clubs in southeastern Europe Acronyms and codes Open market operation, by the Federal Reserve or other central banks Open Market Option allows someone approaching retirement to ‘shop around’ One-man operation (OMO), a bus or tram on which the driver collects the fares Oracle Media Objects a software development application. Ontario Mathematics Olympiad Mostar Airport, Bosnia and Herzegovina, IATA code OMO Other uses Omo (detergent), a detergent product Omo sebua, a traditional house style of the Nias people of Indonesia Omo tuo, a Ghanaian staple food made with rice Omo-, a prefix for the scapula Omorashi, bladder incontinence fetishism See also Ommo (disambiguation) Omon (disambiguation) Omos, professional wrestler (WWE) Omos, fictional star and solar system introduced in Edgar Rice Burroughs' Adventure on Poloda 1942