The Cercetae are an ancient people of Scythia mentioned by Strabo (Geographia 11.2) and Pliny the Elder (Chorographia 1.12).
Pliny places them beyond the Amazons and the Hyperboreans, together with the Cimmerii, Cissianti, Achaei, Georgili, Moschi, Phoristae and Rimphaces.
References
Cercetae Wikipedia(Text) CC BY-SA