Which country is the origin of the wine known as Port?

The wine known as Port originated in Portugal.

Port is a fortified wine produced in Portugal’s Douro Valley in the country’s north. During production, winemakers add aguardente, a neutral grape spirit, to stop fermentation. This preserves some natural grape sugar and raises the wine’s alcohol level, creating Port’s characteristic richness and sweetness.

The name comes from Porto, the coastal Portuguese city at the mouth of the Douro River. Historically, wine from the inland valley was transported downriver to Porto and nearby Vila Nova de Gaia, where it was stored, aged, and shipped abroad. British merchants helped make Port especially popular in England during the late 17th and early 18th centuries.

Port is not limited to sweet red styles. White, rosé, dry, and tawny varieties also exist. Wines made elsewhere may imitate the style, but within European protected-designation rules, the name “Port” is reserved for wine from Portugal.