"Archon" can refer to:
- Celestial archon, a member of an elite group of lawful good celestials,
- Elemental myrmidon, a member of an elite group of usually chaotic evil elementals,
- Elemental archon, a worshiper of one of the elemental lords who gained the powers of one of the four elements, or
- Another name for the gemstone Blue John, a low-grade variety of fluorspar.