Acichorius

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| name = Acichorius

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| occupation = Leader of the Gauls

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| known_for = Invaded Thrace and Macedonia

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{{short description|3rd-century BC Gallic ruler}}

Acichorius ({{langx|grc|Ακιχώριος}}) was one of the leaders of the Gauls, who invaded Thrace and Macedonia in 280 BC.{{sfn|Smith|1870|p=12}} He and Brennus commanded the division that marched into Paionia. In the following year, 279, he accompanied Brennus in his invasion of Greece.{{harvnb|Smith|1870|p=12}} cites Pausanias, x. 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.{{harvnb|Smith|1870|p=12}} cites Schmidt, "De fontibus veterum auctorum in enarrandis expeditionibu's a Gallis in Macedonian! susceptis," Berol. 1834