Rug or RUG may refer to:
- Rug, or carpet, a textile floor covering
- Rug, slang for a toupée
- Ghent University (Rijksunversiteit Gent, or RUG)
- Really Useful Group, or RUG, a company set up by Andrew Lloyd Webber
- Rugby railway station, National Rail code RUG
- University of Groningen (Rijksuniversiteit Groningen), or RUG