PIB

• Particle in a box (PIB), a model quantum mechanical system
• Pebibyte (PiB), a unit of digital information storage
• Pittsburgh compound B (PiB), chemical used in studying Alzheimer's Disease
• Polyisobutylene, or PIB, alternative names for Butyl rubber

• Pine Island Bay, West Antarctica
• Pir Ilahi Buksh Colony (PIB Colony), Sindh, Pakistan
• Put-in-Bay, Ohio, United States

• Plug In Baby, a song by UK alternative rock band Muse
• Purified in Blood (PiB), Norwegian band

• Hattiesburg-Laurel Regional Airport (IATA airport code: PIB)
• Person In Black, an alternate term for members of the Goth subculture
• Press Information Bureau, Government of India
• Produit Intérieur Brut (French), Producto Interno Bruto (Spanish), Produto Interno Bruto (Portuguese) or Produsul Intern Brut (Romanian) for gross domestic product
• Projected Inventory Balance

See also

• Pib and Pog, animated film
• Permanent interest bearing shares (PIBS), fixed-interest securities issued by UK building societies