HDN may refer to
Medicine edit
- Hemolytic disease of the newborn, an alloimmune illness
- Hydronephrosis, hydrostatic dilation of the kidney
Places edit
- Harlesden station, England, station code
- Yampa Valley Airport, Colorado, US, IATA code
Other edit
- Hyperdimension Neptunia, a video game series
- Hydrodenitrogenation, an industrial chemical process
- Northern Haida language of North America, ISO 639-3 code
- Philippine Human Development Network
- Hdn., an abbreviation for the Greek grammarian Aelius Herodianus
This disambiguation page lists articles associated with the title HDN.
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