The meaning of the Acronym OGA is...

OGA is

• On Good Authority

More Meanings For OGA:

• Ozone Gas Analyzer
• Oak Grove Alpaca
• The Online Gaming Alliance
• Online Graphics Associates
• Oregon Geographic Alliance
• New Hampshire Old Graveyard Association
• Outdoor Guides Association
• On Good Authority
• One Goofy Asian
• Outer Gimbal Axis
• Outer Gimbal Angle
• Other Government Agency
• On Good Authority
• On Good Authority
• Other Government Agency

OGA is also in:

• Firms
• Meteorology
• Military
• NASA
• Professional Organizations
• State and Local
• Unfiled
• United Nations
• US Government