Eco
# Eco

Eco may refer to Ecology or Economics. It may also refer to:

## Arts and entertainment

* Eco (video game), a 1988 life simulation game
* Eco (2018 video game), a 2018 simulation game
* Emil Chronicle Online, a 2005 Japanese MMO computer game
* English Chamber Orchestra, based in London
* Eco, a character in the Dragonar Academy light novel series
* Eco, a fictional substance in the Jak and Daxter games
* Eco, a character on the children's show The Shak

## Government and politics

* Economic Cooperation Organization, an international organization
* Environment and Conservation Organisations of Aotearoa New Zealand
* Environmental Commissioner of Ontario
* European Communications Office

## Technology

* .eco, a top-level domain for the Internet
* eco - Association of the Internet Industry, the German Internet industry association
* Elementary column operations, an operation performed on the columns of an elementary matrix in mathematics
* Engineering change order

## Other uses

* Eco (currency), a proposed currency
* ECO: A Covenant Order of Evangelical Presbyterians, a Christian denomination
* Edison Chouest Offshore, an American shipbuilder
* Encyclopaedia of Chess Openings
* Energy Company Obligation, a government scheme in Great Britain
* Environmental Children's Organization, a children's environment organization founded by Severn Suzuki in the 1990s
* Equity carve-out
* Esporte Clube Osasco, a Brazilian football club
* Eternally collapsing object
* Noticias ECO, a defunct television network
* Umberto Eco (1932–2016), Italian philosopher, semiotician, novelist
