The meaning of the Acronym OPB is...

OPB is

• Oxidizer Preburner

More Meanings For OPB:

• On-chip Peripheral Bus
• One- Piece Building
• Other Peoples Babies
• Outstanding Principal Balance
• OPerating Budget
• Oxidizer Preburner
• Oregon Progress Board
• Office of Planning and Budget
• Office of Planning and Budget
• Oasis Praise Band
• Oregon Public Broadcasting
• Open Bay, Papua New Guinea

OPB is also in:

• Accounting
• Airport Codes
• Educational
• General
• Hardware
• Music
• NASA
• Non-Profit Organizations
• State and Local
• Unfiled
• US Government