Bacchides (Greek: Βακχίδης) was a Hellenistic Greek general; friend of the Syrian-Greek king Demetrius; and "ruler in the country beyond the river"—Euphrates. Demetrius sent him in 161 BCE to Judea with a large army, in order to invest the recreant Alcimus with the office of high priest (I Macc. vii. 8, 9). The peaceable Assideans credulously expected friendship from him; but, contrary to oath and covenant, he cruelly slew sixty of them (ib. vii. 16). Leaving Jerusalem, he made a slaughter-house of Bezeth (Bethzecha), and after handing the country over to Alcimus, returned to the king (ib. vii. 19, 20).
Demetrius sent Bacchides back to Judea. A Greek army, under General Nicanor, had been defeated by Judas Maccabeus (ib. vii. 26-50) at the Battle of Adasa. Nicanor had been killed near Adasa. Bacchides was sent with Alcimus and an army of twenty thousand infantry and two thousand cavalry. Bacchides met Judas at The Battle of Elasa (Laisa). Judas was killed and his army defeated.