Octet
- 8 (disambiguation)
- Byte
- Eightfold Way (physics)
- Lambda cube
- Octal
- Octant (solid geometry)
- Octave (poetry)
- Octet (Beethoven)
- Octet (Bruch)
- Octet (Christensen)
- Octet (Lachner)
- Octet (Martins)
- Octet (Mendelssohn)
- Octet (Reich)
- Octet (Reinecke)
- Octet (Schubert)
- Octet (Stravinsky)
- Octet (computing)
- Octet (music)
- Octet (musical)
- Octet rule
- Octetra
- Okta
- String octet
- Violin octet