PPD

PPD may refer to:

Points Per Day is a mechanism for measuring work done in the Folding@home distributed computing project
PostScript Printer Description files are created by vendors to describe the entire set of features and capabilities available for their PostScript printers

Popular Democratic Party of Puerto Rico (Partido Popular Democrático), a political party in Puerto Rico
Partido Popular Democrático/Partido Social Democrata, a political party in Portugal
Partito Popolare Democratico Svizzero, a political party in Switzerland
Party for Democracy (Partido por la Democracia), a political party in Chile

p-Phenylenediamine, an aromatic amine
Paranoid personality disorder, a psychiatric diagnosis
Persistent Pigment Darkening, a measure of UVA protection by sunscreens
Pharmaceutical Product Development, a global contract research organization (CRO)
Postharvest physiological deterioration, a process that renders root tubers of cassava black and inedible
Postpartum depression, an after childbirth condition, is a mental health disorder striking women within the first year after giving birth
Pour Point Depressant, a chemical added to crude oil to depress (lower) the Pour point
ppd, Protopanaxadiol, an active molecule
Purified Protein Derivative, also known as the Mantoux screening test, Tuberculin Sensitivity Test, Pirquet test, or PPD test, used for tuberculosis testing

Pani Poni Dash!, an anime series
Partners in Population and Development, an intergovernmental organization
Philadelphia Police Department, a police agency in Pennsylvania, U.S.
Phoenix Police Department, a police agency in Arizona, U.S.
Pontypridd railway station, Wales, National Rail station code
PPD-40, a Russian submachine gun
Pre-Paid Legal Services, Inc. New York Stock Exchange ticker symbol
Published Price to Dealer, a music industry term designating unit price
Postponed, most commonly a sporting event, especially baseball, usually due to rain, see also Rainout (sports)