PDL is an initialism for:

• Democratic Liberal Party (Partidul Democrat Liberal), a former political party in Romania
• Labour Democratic Party (Partito Democratico del Lavoro), a former political party in Italy
• Pole of Freedoms (Polo delle Libertà), a former political alliance in Italy
• The People of Freedom (Il Popolo della Libertà), a former political party in Italy
• Free Destourian Party (Parti Destourien Libre), a current political in Tunisia

• Page description language
• Perl Data Language and the data type it supports
• Program Design Language, a method of software construction
• Progressive download
• Public Documentation License, used with OpenOffice.org

• PDL, a former electrical hardware manufacturer in New Zealand now part of Schneider Electric
• Periodontal ligament
• Power door locks
• Propositional dynamic logic
• Pulsed dye laser
• Poundal, a unit of force (abbreviated pdl)
• Polarization Dependent Loss, see Polarization mode dispersion

• Premier Development League, the former name of a developmental soccer league in the United States and Canada now known as USL League Two.
• Professional Development League, an English system of youth football leagues.

• PDL BioPharma, formerly Protein Design Labs
• João Paulo II Airport (IATA code PDL)
• Previously developed land, see Brownfield land
• Ponta Delgada Airport
• Poorly Drawn Lines, an absurdist webcomic
• Portsmouth Direct line, a railway line in England

This disambiguation page lists articles associated with the title PDL.
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