PPG
PPG may stand for:
Science and technology
- Pacific Proving Grounds, a former US-operated nuclear test site
 - Photoplethysmograph, an optically obtained volumetric measurement of an organ
 - Pterygopalatine ganglion, one of the four Parasympathetic ganglia of the head and neck
 - Pteridophyte Phylogeny Group, a group promoting the taxonomy of pteridophytes
 
- Chemistry
 
- Photolabile protecting group, a strategy to temporarily protect functional group(s) and liberate upon action of light
 - Policosanol, a nutritional supplement
 - PPG Industries, a U.S. manufacturer, formerly known as Pittsburgh Plate Glass
- PPG Place, its office complex
 
 - Polypropylene glycol, a polymer
 - Post-prandial glucose, a measure of blood sugar after a meal
 - Pounds per gallon, a measure of density, typically of a fluid. It is common in the oil industry, especially as a unit for Mud weight.
 - Purpurogallin, the aglycon of several glycosides from nutgalls
 
- Electronics & Electrical
 
- PPG Phonem, a vocal synthesizer
 - Palm Products GmbH, an audio synthesizer company
 - Penile plethysmograph a device to measure male arousal
 - Push Proxy Gateway, a component of a WAP server in telecommunications
 - Pulse pattern generator, a piece of electronic test equipment or software used to generate digital electronics stimuli
 - Personal Protective Ground, a safety device that is conductive, used to ground electrical equipment in case of accidental energization during work
 
- Transport
 
- PPG tankette, a Soviet armoured vehicle
 - IATA airport code for Pago Pago International Airport
 - Powered paragliding, a form of ultralight aviation
 
In fiction
- The Powerpuff Girls, an animated television series
 - Powerpuff Girls Z, a Japanese TV series based on the American one
 - The Powerpuff Girls (2016 TV series), a reboot of the original series
 
Other
- Palestinian Presidential Guard
 - Pittsburgh Post-Gazette, a major newspaper in the Pittsburgh, Pennsylvania region.
 - Planning Policy Guidance Notes, in the United Kingdom
 - Points per game in sports
 - Power play goal in ice hockey