Tartarus - (a.k.a. Tartaros, Tartarizo) God of the depths of the Underworld - a great storm pit - and the father of Typhon.
Taygete - (a.k.a. Taygeti, Taigeti) One of the seven Pleiades, a mountain nymph.
Terpsichore - One of the Muses - represented Dancing.
Thalia - One of the Muses - represented Comedy.
Thanatos - (a.k.a. Mors) God of death.
Themis - Ancient goddess of divine order, law, and custom.
Thetis - Leader of the Nereids, a shapeshifter, and a prophet.
Triton - Trumpeter of the sea and messenger of the deep.
Tyche - (a.k.a. Fortuna, Nortia) Goddess of fortune and prosperity.
Typhon - (a.k.a. Typhaon, Typhoeus, Typhus) God of monsters, storms, and volcanoes. Challenged Zeus for control of Mount Olympus.