GDP, short for gross domestic product, is the basic measure of a country's overall economic output.

GDP may also refer to:

• GDP (chemotherapy), a chemotherapy treatment regimen
• GDP (musician), an American hip hop musician from New Jersey
• Giant depolarizing potentials, the first type of electrical activity of developing brain
• Gibraltar Defence Police, a civil police force which guards and enforces law on Ministry of Defence installations in Gibraltar
• Gidea Park railway station, National Rail station code GDP
• Good distribution practice, the guidelines for the proper distribution of medicinal products for human use
• Global Drifter Program, a program that was aiming to collect measurements of surface ocean currents, sea surface temperature and sea-level atmospheric pressure using drifters.
• Good documentation practice, pharmaceutical description of standards by which documents are created and maintained
• Ground delay program, a traffic flow initiative for aviation in the United States
• Guanosine diphosphate, a nucleotide
• Grand Ducal Police, the national police force of Luxembourg

GdP may refer to:

• Gewerkschaft der Polizei (GdP), a trade union of police employees in Germany