Flavin
- Adrian Flavin
- Christopher Flavin
- Dan Flavin
- Dan Flavin (politician)
- Dick Flavin (Gaelic footballer)
- Dick Flavin (poet)
- Flavin adenine dinucleotide
- Flavin containing monooxygenase 1
- Flavin containing monooxygenase 3
- Flavin group
- Flavin mononucleotide
- Flavin reductase
- Flavin, Aveyron
- Flavin-containing amine oxidoreductase
- Flavin-containing monooxygenase
- James Flavin
- Jennifer Flavin
- Martin Flavin
- Martin Flavin (politician)
- Michael Joseph Flavin
- Mick Flavin