PKP may stand for:

Organizations

* Partido Komunista ng Pilipinas-1930, original Filipino communist party * Communist Party of the Philippines, Partido Komunista ng Pilipinas, underground Filipino Maoist party * Phi Kappa Phi, oldest all-discipline honor society in the United States * Phi Kappa Psi, American social fraternity * Pi Kappa Phi, U.S. social fraternity * Polish State Railways (Polish: ''Polskie Koleje Państwowe''), railway operator * Political Consultative Committee (Polish: ''Polityczny Komitet Porozumiewawczy''), a World War II Polish political organization * Polish Auxiliary Corps (Polish: ''Polski Korpus Posiłkowy''), a 1916–1918 Polish military formation in the Austro-Hungarian Army * Public Knowledge Project, non-profit research initiative

Objects

* PKP "Pecheneg", Russian machine gun * Purple-K, fire-extinguishing agent

Other

* Pierre Karl Péladeau, former leader of the Parti Québécois and largest shareholder in Quebecor Inc. * HTTP Public Key Pinning, security feature *''Pyaar Ka Punchnama'', a 2011 Indian film * A seismic wave that passes through Earth's outer core * 2020 Malaysia movement control order (Malay: ''Perintah Kawalan Pergerakan 2020''), a partial lockdown order * Pembroke-King's Programme, study abroad programme in Pembroke College in the University of Cambridge {{disambiguation, geo