OCO
# OCO

Oco, OCO or O.C.O may refer to:

* OCO (video game), a 2D minimalistic platform indie game
* Oco, a town in Navarre, Spain
* Oco, Ávila, a town in Ávila province, Spain
* O.co Coliseum in Oakland, California, United States
* Old Cornish language (ISO 639-3 code: oco)
* Online channel optimisation, particularly the use of tools such as A/B testing and marketing automation to improve websites' KPIs.
* Oort cloud object, distant bodies of the solar system
* Orbiting Carbon Observatory-2, successfully launched in 2014, or the original Orbiting Carbon Observatory, lost to a launch vehicle failure in 2009.
* Overseas Contingency Operation, a name for the United States War on Terror
* Overstock.com, American online furniture store
* One cancels other, particularly the use of OCO orders for buying and selling stocks and options on a contingent basis
* Carbon dioxide, with structural formula OCO (simplified to $CO_2)$
* Offensive Cyber Operations, a term used by the US Military and other NATO allies.
