RGN or Rgn may refer to:
- RGN, a human gene which codes for the protein regucalcin
- RGN hand grenade, a Soviet weapon
- Registered General Nurse, in the United Kingdom
- rgn, ISO 639-3 language code for the Romagnol language
- RGN, IATA code for Yangon International Airport in Myanmar
This disambiguation page lists articles associated with the title Rgn.
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