Star Carr is a Mesolithic archaeological site in North Yorkshire, England. It is around five miles (8 km) south of Scarborough. It is generally regarded as the most important and informative Mesolithic site in Great Britain. It is as important to the Mesolithic period as Stonehenge is to the Neolithic period or Scandinavian York is to understanding Viking Age Britain.

The Mesolithic or Middle Stone Age is the Old World archaeological period between the Upper Paleolithic and the Neolithic. The term Epipaleolithic is often used synonymously, especially for outside northern Europe, and for the corresponding period in the Levant and Caucasus. The Mesolithic has different time spans in different parts of Eurasia. It refers to the final period of hunter-gatherer cultures in Europe and the Middle East, between the end of the Last Glacial Maximum and the Neolithic Revolution. In Europe it spans roughly 15,000 to 5,000 BP; in the Middle East roughly 20,000 to 10,000 BP. The term is less used of areas farther east, and not at all beyond Eurasia and North Africa.