The meaning of the Acronym OIS is...

OIS is

• Office Information System
• Only In Spain

More Meanings For OIS:

• Open Interface Specification
• Online Information System
• Open Interconnected System
• Oh, I See!
• Only In Spain
• Office of Instructional Services
• Oslo International School
• Optical Intrinsic Signal
• O'Brien Investment Services
• OMNI Information Services
• Office Information System
• Only In Spain
• Oil States International
• Officer Indoctrination School
• Optical Image Stabilizer

OIS is also in:

• Chat
• Firms
• General
• Hardware
• Hospitals
• Military
• NASA
• NYSE Symbols
• Universities