Ontario wine is Canadian wine produced in the province of Ontario. The provinces has three official wine-growing region, the Niagara Peninsula, the north shore of Lake Erie, and Prince Edward County, although wineries also exist in other regions in Ontario. Approximately two-thirds of Canada's vineyard acreage is situated in Ontario, with over 150 vineyards spread across 6,900 hectares (17,000 acres). As a result, the province is the country's largest producer of wine, accounting for 62 per cent of Canadian wine production, and 68 per cent of all Canadian wine exports.