PD, P.D., or Pd may refer to:
The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series.
The PDP-10 is a discontinued mainframe computer family manufactured by Digital Equipment Corporation (DEC) from 1966 into the 1980s.
The 12-bit PDP-8, produced by Digital Equipment Corporation (DEC), was the first successful commercial minicomputer.
PDF/A is an ISO-standardized version of the Portable Document Format (PDF) specialized for use in the archiving and long-term preservation of electronic documents.
The PDC World Darts Championship, organised by the Professional Darts Corporation (PDC), is one of the two World Professional Darts Championships held annually in the sport of darts.
Programmed death-ligand 1 (PD-L1) also known as cluster of differentiation 274 (CD274) or B7 homolog 1 (B7-H1) is a protein that in humans is encoded by the CD274 gene.
Persatuan Bolasepak Polis Di-Raja Malaysia (Royal Malaysia Police Football Association), or simply known as PDRM FA is an association football club associated with the entity of the Royal Malaysia Police, who play in the Liga Premier, the second division of Malaysian football.
Petróleos de Venezuela, S.A. (PDVSA, Spanish pronunciation: [peðeˈβesa]) (Petroleum of Venezuela) is the Venezuelan state-owned oil and natural gas company.
The Partido Demokratiko Pilipino-Lakas ng Bayan (Philippine Democratic Party-Power of the People), more commonly known as PDP–Laban, is the ruling political party in the Philippines.