Onega may refer to:
Places Russia Onega (river), in Arkhangelsk Oblast Onega, Russia, a town in Arkhangelsk Oblast Onega Bay (Onega Gulf) Onega Peninsula Lake Onega
United States Onega, Minnesota, United States Onega, Texas (now called Aubrey), United States
People Ermindo Onega (1940–1979), Argentine footballer Daniel Onega (born 1945), Argentine footballer
Ships , a Russian factory ship in service 1945-69
Other Onega stepanovi, an Ediacaran fossil genus renamed Cephalonega in 2019 Onega (leafhopper), a genus of leafhoppers
Onega rocket, a proposed further upgrade version of the Soyuz-2 launch vehicle
See also Onezhsky (disambiguation) Omega (disambiguation)