OIS
- Code
-
Meaning
Language
Themes and places
- OIS
-
Operational Intercommunication System
- OIS
-
Optical Imager Study
- OIS
-
Orbit Injection Subsystem
- OIS
-
Orbit Inserting System
- OIS
-
Orbit Insertion Subsystem
- OIS
-
Orbiter Instrumentation Systems