Star Carr is a Mesolithic archaeological site in North Yorkshire, England. It is around five miles 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 site was occupied during the early Mesolithic archaeological period, which coincided with the preboreal and boreal climatic periods. Though the ice age had ended and temperatures were close to modern averages, sea levels had not yet risen sufficiently to separate Britain from continental Europe.