From Morfa, Gwynedd to all cities in Greater London starting with letter G
- Gallows Corner, Gwynedd
- Gallows Corner, Gwynedd
- Gants Hill, Gwynedd
- Gidea Park, Gwynedd
- Gipsy Hill, Gwynedd
- Globe Town, Gwynedd
- Goddington, Gwynedd
- Golders Green, Gwynedd
- Goodmayes, Gwynedd
- Gospel Oak, Gwynedd
- Grahame Park, Gwynedd
- Grange Park, Gwynedd
- Green Street Green, Gwynedd
- Greenford, Gwynedd
- Greenhill, Gwynedd
- Greenwich, Gwynedd
- Greenwich, Gwynedd
- Grove Park, Gwynedd
- Grove Park, Gwynedd
- Gunnersbury, Gwynedd