- Gavres (56290)
- Gestel (56830)
- Glenac (56200)
- Gourhel (56800)
- Gourin (56110)
- Grand-champ (56390)
- Groix (56590)
- Guegon (56120)
- Guehenno (56420)
- Gueltas (56920)
- Guemene-sur-scorff (56160)
- Guenin (56150)
- Guer (56380)
- Guern (56310)
- Guidel (56520)
- Guillac (56800)
- Guilliers (56490)
- Guiscriff (56560)
- Hellean (56120)
- Hennebont (56700)
- Hoedic (56170)
- Ile-aux-moines (56780)
- Ile-d’arz (56840)
- Ile-d’houat (56170)
- Inguiniel (56240)
- Inzinzac-lochrist (56650)