DPN may refer to:
Science and medicine 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
Other uses 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