Ever since antiquity, the presence of evil has been considered incompatible with the existence of God. This apparent contradiction gave rise to the argument from evil, which turned into a formidable weapon against theism. Faced with this challenge, theists of all creeds have been proposing theodicies, or justifications of God's ways. This monograph is the first book-length treatment of the subject from a Platonic perspective. Its essential message is that Plato devised a noteworthy and influential theodicy comprised of several theodicean strategies, some of which remain relevant even today. Hence, Plato's pioneering contribution to the field of theodicy deserves the attention of both philosophers and theologians.