OIF

The three-letter acronym OIF may refer to the following.

Geoengineering

• Ocean Iron Fertilization, the practice of adding iron or iron compounds to the ocean to stimulate phytoplankton growth

Events

• Operation Iraqi Freedom, the initial portion of the Iraq War

Formats

• Object Interchange Format, a database management protocol developed by the Object Data Management Group

Foundations

• Optimist International Foundation, a charitable foundation dedicated to instilling optimism in youth
• Osteogenesis Imperfecta Foundation, a charitable foundation in support of osteogenesis imperfecta

Offices

• Office for Intellectual Freedom, a subunit of the American Library Association

Organizations and forums

• Organisation internationale de la Francophonie, or simply the Francophonie, an organization of French-speaking polities
• Optical Internetworking Forum, a communications industry forum

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