Syphax (? - 202 BC) (in Tifinagh:ⵙⵢⴼⴰⴽⵙ) was a king of Western Numidia, whose capital was Siga (current Aïn Témouchent in Algeria), from 213 to 202 BC.
During the Second Punic War, he first allied himself with the Romans, thus opposing Gaïa, king of eastern Numidia, and his son Massinissa, allies of the Carthaginians.
On the death of Gaïa, he annexed the territory of this one and his marriage with Sophonisbe, the daughter of Hasdrubal Gisco, caused a total reversal of the alliances, Massinissa passing into the camp of Rome.
Syphax is defeated and captured in 203 BC. J-C by the commander Gaius Laelius thanks to Massinissa, near Cirta (current Constantine). The Roman general Scipio Africanus sent him to Rome as a prisoner where he died in 202 or 203 BC. J-C. It was then his son Vermina who succeeded him, the last Massaesyle king before the unification of Numidia by Massinissa.