- Gifford Ledge
- Gooseberry Island
- Gooseberry Island
- Grassy Island
- Gray Gables
- Great Island
- Great Island
- Great Ledge
- Great Rock
- Great Thatch Island
- Gate Island
- Gomorrah
- Green Ridge Park
- Greylock
- Greylock Estates
- Gidleys Corner
- Giffords Corner
- Ginty Corner
- Globe Village
- Gowards Corner
- Grassy Island
- Great Flat
- Great Island
- Great Island
- Great Neck
- Grinnell Rock
- Gull Island
- Gull Rock
- Gumbys Head
- Gunning Island