GESI
| Acronym | Definition |
|---|---|
| GESI | Gender Equality and Social Inclusion (various organizations) |
| GESI | Global E-Sustainability Initiative (Brussels, Belgium; climate change; resources sustainability) |
| GESI | Graham Environmental Sustainability Institute (University of Michigan) |
| GESI | Global Environmental Sanitation Initiative |
| GESI | Global Earthquake Safety Initiative (Geohazards International) |
| GESI | Global Emissions Systems Inc. (Whitby, Ontario, Canada) |
| GESI | Gas Equipment Systems Inc. (Rancho Cucamonga, CA) |