Zinfandel is a variety of black-skinned wine grape. The variety is grown in over 10 percent of California vineyards. DNA analysis has revealed that it is genetically equivalent to the Croatian grapes Crljenak Kaštelanski and Tribidrag, as well as to the Primitivo variety traditionally grown in Apulia, Italy, where it was introduced in the 18th century, and Kratošija in Montenegro. The grape found its way to the United States in the mid-19th century, where it became known by variations of a name applied to a different grape, likely "Zierfandler" from Austria.

Croatian wine has a history dating back to the Ancient Greek settlers, and their wine production on the southern Dalmatian islands of Vis, Hvar and Korčula some 2,500 years ago. Like other old world wine producers, many traditional grape varieties still survive in Croatia, perfectly suited to their local wine hills. Modern wine-production methods have taken over in the larger wineries and EU-style wine regulations have been adopted, guaranteeing the quality of the wine.