From Gerlan, Gwynedd to all cities in Cambridgeshire starting with letter H
- Haddenham, Gwynedd
- Haddenham End Field, Gwynedd
- Haddon, Gwynedd
- Hail Weston, Gwynedd
- Hamerton, Gwynedd
- Hampton Hargate, Gwynedd
- Hampton Vale, Gwynedd
- Hardwick, Gwynedd
- Hardwick, Gwynedd
- Harlton, Gwynedd
- Haroldsbridge, Gwynedd
- Harston, Gwynedd
- Hartford, Gwynedd
- Haslingfield, Gwynedd
- Hatley St George, Gwynedd
- Hauxton, Gwynedd
- Heathfield, Gwynedd
- Helpston, Gwynedd
- Hemingford Abbots, Gwynedd
- Hemingford Grey, Gwynedd
- Heydon, Gwynedd
- High Cross, Gwynedd
- Highfields, Gwynedd
- Highfields Caldecote, Gwynedd
- Hildersham, Gwynedd
- Hilton, Gwynedd
- Hinchingbrooke, Gwynedd
- Hinxton, Gwynedd
- Histon, Gwynedd
- Holme, Gwynedd
- Holywell, Gwynedd
- Hook, Gwynedd
- Horningsea, Gwynedd
- Horseheath, Gwynedd
- Horseway, Gwynedd
- Houghton, Gwynedd
- Huntingdon, Gwynedd