Alexander the Great was tutored by Aristotle until the age of 16. Other notable students include: Aristoxenus, Dicaearchus, Demetrius of Phalerum, Eudemos of Rhodes, Harpalus, Hephaestion, Meno, Mnason of Phocis, Nicomachus, and Theophrastus.

Well, Plato was Aristotle's teacher and Socarates was Aristotle's teacher but what you are asking is who was a STUDENT of Aristotle. His most famous student was Alexander the Great.

Some of his other students were: Antipater, Aristoxenus, Dicaearchus, Demetrius of Phalerum, Eudemos of Rhodes, Harpalus, Hephaestion, Meno, Mnason of Phocis, Nicomachus, and Theophrastus.

a high school diploma Apuleius informs us that Speusippus praised Plato's quickness of mind and modesty as a boy, and the "first fruits of his youth infused with hard work and love of study".[20] Plato must have been instructed in grammar, music, and gymnastics by the most distinguished teachers of his time.[21] Dicaearchus went so far as to say that Plato wrestled at the Isthmian games.[22] Plato had also attended courses of philosophy; before meeting Socrates, he first became acquainted with Cratylus (a disciple of Heraclitus, a prominent pre-Socratic Greek philosopher) and the Heraclitean doctrines.[23]