ICI or Ici may mean:
- ICI programming language, a computer programming language developed in 1992
- Ici (magazine), an alternative weekly newspaper in Montreal, Canada
ICI is also an abbreviation which may mean:
- Imperial Chemical Industries, a British chemical company
- Institute for Competitive Intelligence, a German post-graduate training organization
- Investment Company Institute, an American investment company trade organization
- Internet Computer Integration Project
- Inter-Channel-Interference
- International Commerce Institute, a high school in Phoenix, Arizona, United States
- Interface Control Information, a header used for layers in the OSI model
- Industrial Control Integrator, an industrial automation company
- Istanbul Cooperation Initiative, an initiative launched during NATO's 2004 Istanbul Summit.
- Financing Instrument for Cooperation with Industrialised and Other High Income Countries and Territories, an instrument of the European Union
