This study aimed to determine the relationship between creativity on one hand and lexical reception and production knowledge of Iranian EFL students on the other hand. The data were collected using three tests: a creativity test (Torrance, 1990), the Vocabulary Levels Test (Schmitt, Schmitt, & Clapham, 2001), and the Productive Version of the Vocabulary Levels Test (Laufer & Nation, 1995) which were administered to a group of 141 Iranian undergraduate students majoring in English Translation and Literature at Arak and Qom universities. The results demonstrated that there was not a high correlation between creativity on one hand and lexical reception and production on the other hand. The learners' passive and active vocabulary knowledge in the tests as a whole and at different word-frequency level were highly correlated. Passive vocabulary was always larger than active vocabulary at all levels; however, the gap between the two increased at lower word-frequency levels.