GEF or Gef may refer to:

• Gef, a supposed talking mongoose from the Isle of Man
• Global Education Futures, a European NGO focused on global transformation of education
• Global Enrichment Foundation, a Canadian humanitarian organization
• Global Environment Facility, an intergovernmental environmental organizations
• Global Equality Fund, of the United States Department of State
• Green European Foundation, a European political foundation
• Graphical Editing Framework, a software framework
• Greek Expeditionary Force (Korea), during the Korean War
• Greif, Inc., an American manufacturing company
• Guanine nucleotide exchange factor

This disambiguation page lists articles associated with the title GEF.
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