The Siraces or Sirakes (Greek: Sirakoi, Latin: Siraci, also Siraceni and Seraci) were a hellenized Sarmatian tribe that inhabited Sarmatia Asiatica; the coast of Achardeus at the Black Sea south 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 moral. They were neighbours to the later enemy tribe of Aorsi.
They migrated from the Caspian Sea to the Black Sea region. By the late 4th century, they had occupied lands between the Caucasus mountains and the Don, becoming masters of the Kuban region. They were the first Sarmatian tribe to have contact with the Hellenic groups on the coast of the Black Sea.
They and the Aorsi were merchants who traded with goods of Babylonia and India through the Armenians and Medes, with camels. They profited greatly from this, seen in their clothing attributed with much gold.
King Zorsines fought in the Bosporus under Mithridates of Armenia, the king of Armenia, against the Dandaridae. Their ally Mithridates later turned against the Romans who had put Mithridates on the throne in 41. Mithridates eluded the Romans and recovered his kingdom. In the Bosporan War, The Aorsi under Prince Eunones, sent by Aquila[disambiguation needed] and Cotys is sent after Mithridates and his lands, fights with Zorsines and sieges Uspe in 49 AD (The town offers 10,000 slaves for their capitulation but the assault continues as the Romans decline), Zorsines finally decides to leave Mithridates to rule his paternal lands, after giving hostages to the Romans and thus making peace. He acknowledged Roman superiorty before the image of Emperor Claudius and the power of the Siraces is greatly weakened.
In 193 AD, after another conflict in the Bosporus, the Siraces disappears from the history.
The ethnonym Sirac or Sirak is may composed of two word stems:
- The first part likely being an ethnonym of the Sir people of the Old Turkic Orkhon inscriptions, in the early 8th century.
- The second part likely being a Turkic plural suffix -k or Turkic ak ('white'), with the latter one being commonly accepted by those accepting the Siraces as Turkic.
- O. Karatay, In Search of the Lost Tribe: The Origins and Making of the Croation Nation, 2003, p. 11.