- AGSO stands for Australian Geological Survey Organization
- AGSO stands for Antwerp Gipsy Ska Orkestra (band)
- AGSO stands for Art Gallery of the South Okanagan (Canada)
- AGSO stands for Autonoom Gemeentebedrijf Stadsvernieuwing Oostende (Dutch: Public Company for Urban Renewal Oostende; est. 2002; Belgium)
- AGSO stands for Anthropology Graduate Student Organization (various universities)
- AGSO stands for Australian Geological Survey Office (Canberra, Australian Capital Territory, Australia)
AGSO