- PPD
PPD may refer to:
;Science and Medicine
*p-Phenylenediamine , aromatic amine
*Paranoid personality disorder , psychiatric diagnosis
*Postpartum depression , after childbirth
* Purified protein derivative orMantoux test , for tuberculosis testing
* Persistent Pigment Darkening, measure of UVA protection by sunscreens;Political parties
* "Partido Popular Democrático ", Puerto Rico
* "Partido Popular Democrático/Partido Social Democrata ', Portugal
* "Partito Popolare Democratico Svizzero ", Switzerland
*Party for Democracy ("Partido por la Democracia"), Chile;Miscellanea
* "Pani Poni Dash! ", anime series
*Partners in Population and Development , intergovernmental organization
*Philadelphia Police Department , Pennsylvania, U.S.
*PostScript Printer Description , in computer printers
*PPD-40 , Russian submachine gun
*Pontypridd railway station ,Wales ,National Rail station code PPD.
*Published Price to Dealer , music industry term designating unit price
*Pre-Paid_Legal_Services,_Inc. PPD New York Stock Exchange ticker symbol for Pre paid Legal services, inc.
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