Achillas (Greek: Ἀχιλλᾶς) was one of the guardians of the Egyptian king Ptolemy XIII Theos Philopator, and commander of the king's troops, when Pompey fled to Egypt in 48 BC.
Achillas (bahasa Yunani: Ἀχιλλᾶς) adalah salah satu penjaga raja Mesir Ptolemy XIII Theos Philopator, dan senapati pasukan raja, saat Pompey lari ke Mesir pada 48 SM.