Collio Goriziano (sometimes designated simply as Collio or Collio DOC) is an Italian wine and winemaking region in northeast Italian region of Friuli-Venezia Giulia, located in the northernmost part of the Province of Gorizia, in the Italian part of the Gorizia Hills, which extend to neighboring Slovenia. It has been recognized with the official the status of DOC. Colli Goriziano predominately produces white wines with Friulano, Ribolla Gialla, Malvasia Istriana, Chardonnay, Pinot bianco, Pinot grigio, and Sauvignon blanc being the leading varietals. Red wine is also produced under the Collio Rosso designation and is usually a blend of Merlot, Cabernet franc, and Cabernet Sauvignon.
The name "Collio" is taken from the Italian word colli which means hillsides and describes the terrain of the Collio Goriziano region. The Collio extends from the Judrio river in the west, where it borders the Colli Orientali del Friuli DOC, to the Slovenian border on the east. To the south, it is bordered by the Isonzo del Friuli DOC. Most of the region's vineyards are centered on the comune of Cormons. The soil of the region is composed of calcareous marl and flysch sandstone.