Gelli, a grove of hazels.

Glan, the brink, bank; glan y môr, the sea side.

Glâs, blue, grey, green.

Glyn, a glen.

Gorsav, a station, stand.

Grug, heath.

Gwaelod, a bottom.

Gwaen, a large plain.

Gwern, watery meadow. Alder.

Gwydd, wood.