DPL

• Delhi Public Library, Located in Delhi, India
• Denver Public Library, located in Colorado, USA
• Detroit Public Library, located in Michigan, USA
• Dunedin Public Libraries, located in New Zealand

• Designated place, a Canadian census designation for unincorporated communities in the 100–1,000 population range
• Dipolog Airport, located in Zamboanga del Norte, Philippines with IATA code DPL
• The FAA identifier for Duplin County Airport

• .dpl, the filename extension of Borland software libraries
• Descriptor Privilege Level, the highest CPU resource access level on the x86 architecture
• Dolby Pro Logic, a surround sound processing technology
• Digital Light Processing, a projector technology
• Datamax Printer Language, a printer page description language
• Driver: Parallel Lines, the fourth game in the Driver video game series

• Dipropyllysergamide, a psychedelic drug

• DPL Inc., a public utility in west central Ohio, USA
• Delmarva Power and Light Company, a subsidiary of Exelon
• Democratic Party (Luxembourg), a liberal political party
• Democrats for Liechtenstein, a national-conservative party in Liechtenstein
• Dhaka Premier League, a club List A cricket tournament in Bangladesh
• Delhi Premier League T20, a cricket tournament

• Debian Project Leader, head of the Debian linux distribution
• Defensive Patent License
• Diagnostic peritoneal lavage, a procedure used to determine whether blunt trauma victims require surgery
• Digital Private Line, a squelch system used by Motorola
• Denied Party List, Denied trade screening

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• Dp1 (disambiguation)
• DPI (disambiguation)

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