Giez is a municipality in the district of Jura-Nord Vaudois in the canton of Vaud in Switzerland. Giez is first mentioned in 1011 as Gies. Giez ha…Giez is a municipality in the district of Jura-Nord Vaudois in the canton of Vaud in Switzerland. Giez is first mentioned in 1011 as Gies. Giez has an area, as of 2009, of 4.77 square kilometers. Of this area, 2.79 km² or 58.5% is used for agricultural purposes, while 1.68 km² or 35.2% is forested. Of the rest of the land, 0.27 km² or 5.7% is settled, 0.02 km² or 0.4% is either rivers or lakes.