Timaeus (or Timæus) is a name that appears in several ancient (Greek) sources:

• Timaeus, the Pythagorean philosopher from the 5th century BC, appearing in Plato's Socratic dialogues, see: Timaeus of Locres, and the dialogue named after this Timaeus: Timaeus (Plato)
• Timaeus, the historian from Tauromenium in Sicily, born around 350 BC: see Timaeus (historian)
• Another Timaeus is mentioned in the Gospel of Mark, 10:46