Theaetetus

Theaetetus (Θεαίτητος) is a Greek name which could refer to:

• Theaetetus (mathematician) (c. 417 BC – 369 BC), a Greek geometer
• Theaetetus (dialogue), a dialogue by Plato, named after the geometer
• Theaetetus (crater), a lunar impact crater
• Theaetetus of Cyrene (Θεαίτητος ὁ Κυρηναῖος) (fl. 270 BC), a Greek poet
• Theaetetus (poet) (Θεαίτητος ὁ σχολαστικός) (fl. 6th century AD), a Greek poet