PBO

PBO may refer to:

• Lead(II) oxide (PbO)
• Paraburdoo Airport, Paraburdoo, Australia (IATA airport code: PBO)
• Parliamentary Budget Officer
• Peterborough railway station (National Rail code: PBO)
• Pine Bluff Observatory, an astronomical observatory in Wisconsin, USA
• Pinoy Box Office, a Filipino cable channel
• Piperonyl butoxide, a pesticide synergist
• Plate Boundary Observatory, a geodetic observatory in the western United States
• Portland Bird Observatory, a wildlife observatory on the Isle of Portland, in Dorset, UK
• President Barack Obama, current president of the United States
• Push Button Objects, a producer of experimental hip-hop
• Projected benefit obligation, a specially defined pension obligation under US-GAAP
• Public Benefit Organization, a type of charity or non-profit organization
• Zylon, or Polybenzobisoxazole, a polymer
• Packed Bohemia Object, a data file used in the war games developed by Bohemia Interactive Studio
• Paperback original, a book originally published as paperback
• Pin Bones Out, a type of fish fillet