How do you spell Zoe in greek letters?

There isn't a direct, single-word translation of "Zoe" (ζωή) into Greek letters to represent the name *Zoe* as it's used in English. The word ζωή (zōē) *means* life in Greek, and that's how it would be spelled. Using the name "Zoe" in Greek text would simply use the letters ΖΟΗ.