DPN

• Dermatosis papulosa nigra, a skin condition
• Diabetic Peripheral Neuropathy, a diabetic neuropathy often associated with sensations of burning, shooting, and tingling
• Diarylpropionitrile, a synthetic, nonsteroidal compound
• Diphosphopyridine nucleotide, an old name for Nicotinamide adenine dinucleotide (NAD⁺), a coenzyme found in all living cells
• Diffuse proliferative nephritis, a medical condition

• Deaf President Now, a 1988 student protest at Gallaudet University to force the university to hire a deaf president
• Democratic Party of Namibia
• Democratic Party of Nauru, a political party in the Pacific nation of Nauru
• Designated Portsmouth Number, a measure in the Portsmouth Yardstick system of handicapping for dissimilar boats in a race
• Dip-pen nanolithography, a scanning probe lithography technique
• Diseased Pariah News (1990–1999), a U.S. magazine about living with HIV and AIDS
• Double pointed needles, a type of knitting needle

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