- Halkyn
- Hanmer
- Harlech
- Haroldston West
- Hawarden
- Hawen
- Hayscastle
- Hayscastle Cross
- Hendreforgan
- Hendy
- Henfynyw Upper
- Hengoed
- Henllan
- Henllan Amgoed
- Henry's Moat
- Hensol
- Heol-y-Cyw
- Herbrandston
- Highgate
- Hill Mountain
- Hirnant
- Hirwaun
- Hodgeston
- Hoel-galed
- Holyhead
- Holywell
- Hubberston
- Hundleton
- Hundred House
- Hwlffordd