(Ἀκιχώριος) was one of the leaders of the Gauls, who invaded Thrace and Macedonia in B. C. 280. He and Brennus commanded the division that marched into Paeonia. In the following year, B. C. 279, he accompanied Brennus in his invasion of Greece. (Paus. 10.19.4, 5, 22.5, 23.1, &c.) Some writers suppose that Brennus and Acichorius are the same persons, the former being only a title and the latter the real name. (Schmidt, " De fontibus veterum auctorum in enarrandis expeditionibus a Gallis in Macedoniam susceptis," Berol. 1834.)