- AEGIS stands for AIDS Education Global Information Service
- AEGIS stands for Advanced Electronic Guidance and Instrumentation System
- AEGIS stands for Alien Exterminating Global Intercept System (anime)
- AEGIS stands for Airborne Early Warning Ground Environment Integration Segment (European System)
- AEGIS stands for ATM European Group for Improvement of Scenarios
- AEGIS stands for Advanced Electronic Guided Interceptor System
- AEGIS stands for Antimatter Experiment: Gravity, Interferometry, Spectroscopy
- AEGIS stands for Appropriate and Effective Guidance for Information Security
- AEGIS stands for Assessment of Effectiveness of Geologic Isolation System
- AEGIS stands for [not an acronym] US Navy phased array radar-based combat system (Aegis is the Greek word for Shield)
- AEGIS stands for Advisory Experts Group on Inherent Safety
AEGIS