Θαϊς, Thais: Beautiful, godly. From θεὰ (thea), goddess.

Θάλεια, Thaleia, Thalia: Healthy, vigorous. From θάλλω (thallo), to sprout, to bloom.

Θαλήτας, Thaletas: Healthy, vigorous. From θάλλω (thallo), to sprout, to bloom.

Θαλλὼ, Thallo: Healthy, vigorous. From θάλλω (thallo), to sprout, to bloom.

Θάλπιος, Thalpios: Polite and attentive. From θάλπω, thalpo, to comfort.

Θάλης, Θαλῆς, Thales : Healthy, vigorous. From θάλος (thalos), sprout.

Θεαγένης, Theagenes: Born of a god(s). From θεὸς (theos), god, and γίνομαι (ginomai), I become.

Θεανὼ, Theano: Beautiful, godly. From θεὰ (thea), goddess.

Θέκλα, Thekla: Having godly glory. Beautiful, godly. From θεὸς (theos), and κλέος (kleos), glory.

Θελξινόη, Thelxinoe: She who charms the mind. From θέλγω (thelgo), to captivate, and νοῦς nous), mind.

Θέμις, Themis: Justice. From τίθημι (tithemi), to set, to lay the ground.

Θεμίστιος, Themistios: The just. From Θέμις (Themis), goddess of justice.

Θεμιστογένης, Themistogenes: Born of Themis, just. From Θέμις (Themis), goddess of justice, and γόνος (gonos), offspring.

Θεμιστοκλῆς, Themistocles: Glorious and just. From Themis, goddess of justice, and κλέος (kleos), glory.

Θεόγνις, Theognis: Child of God(s). From θεὸς (theos), god, and γένος (genos), descendant.

Θεοδοσία, Theodosia: A gift of god(s). From θεὸς (theos), god, and δίδω (dido), to offer.

Θεοδόσιος, Theodosios, Theodosius: A gift of god(s). From θεὸς (theos), god, and δίδω (dido), to offer.

Θεοδότη, Theodote: A gift of god(s). From θεὸς (theos), god, and δίδω (dido), to offer.

Θεόδοτος, Theodotos, Theodotus: A gift of god(s). From θεὸς (theos), god, and δίδω (dido), to offer.

Θεόδουλος, Theodoulos: A slave of God. From θεὸς (theos), god, and δοῦλος (doulos), slave.

Θεοδώρα, Theodora: A gift of god(s). From θεὸς (theos), god, and δῶρον (doron), gift.

Θεόδωρος, Theodoros, Theodore: A gift of god(s). From θεὸς (theos), god, and δίδω (dido), to offer.

Θεοδώτητος, Theodoretos: A gift of god(s). From θεὸς (theos), god, and δίδω (dido), to offer.

Θεοκλῆς, Theocles, Theokles: He who glorifies or is glorified by god(s). From θεὸς (theos), god, and κλέος ( kleos), glory.

Θεοκλύμενος, Theoklymenos: He who glorified by god(s). From θεὸς (theos), god, and κλέος ( kleos), glory.

Θεόκοσμος, Theokosmos: Graced by god(s). From θεὸς (theos), god, and κοσμῶ (kosmo), to adorn, to grace.

Θεόκριτος, Theocritos: Deemed by god(s). From θεὸς (theos), god, and κρίνω (krino), to judge.

Θεόκτιστος, Theoktistos: A godly creation. From θεὸς (theos), and κτίσμα (ktisma), creation, edifice.

Θεοκτἰστη, Theoktiste: A godly creation. From θεὸς (theos), and κτίσμα (ktisma), creation, edifice.

Θεόληπτος, Theoleptos: Inspired by the god(s). From θεὸς (theos),  god, and λαμβάνω (lambano), to receive.

Θεόλκητος, Theocletos: Called upon by god(s). From θεὸς (theos), and καλώ (kalo), to summon.

Θεολόγης, Theologes: He who talks of god(s). From θεὸς (theos), and λόγος (logos), word, reason.

Θεόπεμπτος, Theopemptos: God sent. From θεὸς (theos), and πέμπω (pempo), to send.

Θεόπιστος, Theopistos: Devout. From θεὸς (theos), god, and πίστις (pistis), faith.

Θεόπομπος, Theopompos: God sent. From θεὸς (theos), and πέμπω (pempo), to send.

Θεόπροπος, Theopropos: Prophet, seer. Godsent. From θεοπροπέω (theopropeo), to prophecize.

Θεοσέβιος, Theosebios: Pious. From θεὸς