Nomos, from Ancient Greek: νόμος, romanized: nómos, is the body of law governing human behavior.
Nomos or Nomoi may refer to:
- Nomos (mythology), 'the spirit of law' in Greek mythology
- Nomos (sociology), a habit or custom of social and political behavior
- Nomos (music), a genre of Ancient Greek music
- Nomos (band), traditional Irish music band of the 1990s
- Nomos, a publication of the American Society for Political and Legal Philosophy
- Nomos Publishing House