- Haddam
- Haddam Island
- Hadlyme
- Hale Court
- Halftide Rock
- Hall Island
- Hall Island
- Halladay Corner
- Hallville
- Hamburg
- Hammertown
- Hampsted
- Hampton
- Hamptonville
- Hancock
- Hanover
- Happyland
- Harbor View
- Harborview
- Harrisons
- Harrisville
- Hartland
- Harwinton
- Hatch Rock
- Hattertown
- Hawks Nest
- Hawks Nest Beach
- Hawleyville
- Hawthorne Terrace
- Hay Island