PBO may refer to: Government Parliamentary Budget Office, in the federal government of Australia Parliamentary Budget Officer, a Canadian civil servant Projected benefit obligation, a specially defined pension obligation under US-GAAP
Sciences Lead(II) oxide (PbO) Zylon, or Polybenzobisoxazole, a polymer Piperonyl butoxide, a pesticide synergist
Places Peterborough railway station (National Rail code: PBO) Paraburdoo Airport, Paraburdoo, Australia (IATA airport code: PBO) Pine Bluff Observatory, an astronomical observatory in Wisconsin, USA 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
Programming Pixel buffer objects, used for asynchronous pixel transfer operations in OpenGL
People Push Button Objects, a producer of experimental hip-hop President Barack Obama, former president of the United States
Video games Packed Bohemia Object, a data file used in the war games developed by Bohemia Interactive Studio
Computing Precision Boost Overdrive, a technology by AMD for processor overclocking
Other uses Pinoy Box Office, a Filipino cable channel Public Benefit Organization, a type of charity or non-profit organization Paperback original, a book originally published as paperback Pin Bones Out, a type of fish fillet Philharmonia Baroque Orchestra