Gilbertville -- hamlet south of Delhi in southwest Windham Township at intersection of Highway 3 and Regional Road 46.

Glen Meyer -- hamlet west of Langton on Regional Road 23 in Walsingham Township Lot 1, Concessions 13 and 14, and in Houghton Township, Lots 19 and 20, Concession 1. George Edward Meyer bought 50 acres of Lot 14 in 1854, giving location his name. The 14 Mar 2023 British Canadian newspaper reported the Glenmeyer post office had revenue of $102.60 and salaries of $30 in the year ending 30 Jun 1887.

Glenshee -- hamlet in Charlotteville Township on Lot 2, Concession 9. On Regional Road 1. southeast of Silver Hill, west of Simcoe. Called Portland in the 1867 Gazetteer of Oxford and Norfolk Counties. The 14 Mar 1888 British Canadian newspaper reported the Glenshee post office had revenue of $39.97 and salaries of $24.03 in the year ending 30 Jun 1887.

Goshen Road -- road runs from junction at Highway 3 west through third concession of Middleton Township to the town line of Elgin County's Bayham Township.

Gravelly Bay, a small cut into the north side of Long Point.

Greens Corner -- hamlet west of Simcoe on Regional Road 1 in Charlotteville Township on Lot 12, Concessions 9 and 10.

Grindstone (The) �- see Renton

Guysboro -- hamlet in Middleton Township on Lots 1 and 2. On west County border with Elgin County. North and south of Talbot Road (Regional Road 38). Post office opened there in 1856. Perhaps named by Harvey family from Guysboro, Nova Scotia. The 14 Mar 2023 British Canadian newspaper reported the Guysboro post office had revenue of $57.54 and salaries of $37 in the year ending 30 Jun 1887.