Siraces

thumb|Siraces and neighbouring major tribes in the 4th century BC.

The Siraces (, , also Siraceni and Seraci) were a hellenized Sarmatian tribe that inhabited Sarmatia Asiatica; the coast of Achardeus at the Black Sea north of the Caucasus Mountains, Siracena is mentioned by Tacitus as one of their settlements. They were said to be relatively small nation but with great morale. They were neighbours to the later enemy tribe of Aorsi.