GEI may refer to:

• Gebe language
• Gei Zantzinger (1936–2007), American filmmaker
• Global Entrepreneurship Index
• Global Environmental Institute
• Green Enterprise Initiative, in Hong Kong
• Gross enrolment ratio

• Webtrees
• Webtrekk
• WebTrends
• Web tutorial
• WebTV Networks Inc.
• Web typography
• We Built This City (D:TNG episode)
• Webulon
• W. E. Burghardt Du Bois
• W. E. Burghardt DuBois
• WE Butler
• W.E. Butler
• W E Butler
• W.E.Butler (lawyer and educator)
• We Butter The Bread With Butter
• We Butter the Bread with Butter
• WE Butts
• W E Butts
• Webuye Constituency
• Webvet
• Web Visitor Tracking
• Web Visitor Tracking - WVT
• Web War 1
• Webware.com
• Webway