The main scheme of creation in Zoroastrian Pahlavi literature is adopted from the Young Avesta. In this scheme Ohrmazd creates the world in the manner of a skillful craftsman who conceives of the form of his product and then fashions it in matter. The number of the constituents of the world and the sequence in which they are created are already fixed in the Avesta. Pahlavi authors draw on Greek philosophical tradition to rationalise their account of the creation of the world. The article also explores some of the complications that their philosophical elaboration of the Avestan scheme occasions.