The meaning of the Acronym OPG is...

OPG is

• OculoPlethysmoGraphy

More Meanings For OPG:

• Obsessive And Poopy Gamers
• Office of Projects and Grants
• Orbital Police Guard
• Operation Pet Game
• OrthoPantomoGram
• OculoPlethysmoGraphy
• Osteoprotegerin
• Merrill Lynch & Company, Inc.
• Ontario Power Generation
• Operations Planners Group
• Official Police Garage
• Online Policy Group
• Ogn, Papua New Guinea

OPG is also in:

• Airport Codes
• AMEX Symbols
• Chat
• Firms
• Hospitals
• Laboratory
• Military
• Non-Profit Organizations
• Physiology
• Police
• Unfiled
• Universities