- ZGI stands for Zork Grand Inquisitor (computer game)
- ZGI stands for Zaki Gordon Institute (Sedona, AZ)
- ZGI stands for Gods River, Manitoba, Canada (Airport Code)
- ZGI stands for Zebrafish Gene Index (research project)
- ZGI stands for Zentrales Geologisches Institut (German: Central Geological Institute)
ZGI