PG

PG or P.G. may refer to:

• "Parental Guidance" under the British Board of Film Classification rating system
• "Parental Guidance suggested", in the Motion Picture Association of America film rating system
• "Parental Guidance recommended", under the Australian Classification Board rating system

• P.G. Cigars, brand of cigars, or its owner Paul Garmirian
• PG Tips, a brand of tea
• Bangkok Airways (IATA airline designator PG)
• Procter & Gamble, a consumer goods company

• Parti de gauche, a socialist political party in France
• Partido Galeguista (1931), a Galician nationalist political party in Galicia, Spain
• Partido Galeguista (1978), a Galician nationalist political party in Galicia, Spain
• Porter-Gaud School, in Charleston, South Carolina, US
• Project Gutenberg, a volunteer effort to digitize and archive cultural works

• Paul Graham (computer programmer) (born 1964)
• P.G., a Brazilian musician and singer who performed with the band Oficina G3
• P.G. Sittenfeld (born 1984), a member of the City Council of Cincinnati
• Peter Gabriel, from Genesis (band)

• Papua New Guinea (ISO 3166-1 country code PG)
• Peapack-Gladstone, New Jersey
• Podgorica, Montenegro car plates
• Prince George, British Columbia
• Prince George's County, Maryland
• Spratly Islands (FIPS PUB 10-4 territory code PG)
• Persian Gulf region

Biology and chemistry

• Peptidoglycan, a polymer in the cell walls of bacteria
• Phosphatidylglycerol, glycerophospholipid
• 2-Phosphoglyceric acid, glycolysis intermediate
• 3-Phosphoglyceric acid, glycolysis intermediate
• Polygalacturonase, an enzyme
• Propylene glycol, an organic compound
• Prostaglandin, a hormone
• Proteoglycan, a protein

Other uses in science and technology

• pg (Unix), a Unix system command
• Paleogene, a geologic period and system
• Panzergewinde, a contraction of the German Stahlpanzerrohrgewinde (steel conduit thread), a type of thread used for cable glands
• Petagram (Pg), an SI unit of mass based on the kilogram
• Picogram (pg), an SI unit of mass based on the kilogram

• Page (paper)
• Patrologia Graeca, a collection of writings by Christian Church Fathers
• Point guard, one of the five positions in basketball
• Policy Governance, a system for organizational governance
• Postgraduate, in academia
• Power Girl, a DC Comics character
• Proto-Germanic language
• iPhrothiya yeGolide, a South African military decoration