The present study aims to find out the relationship between the Extraversion trait and use of the English Language Learning Strategies (ELLSs) for learners of English as a foreign language. Four instruments were used, which were Persian adapted Strategy Inventory for Language Learning (SILL), a Background Questionnaire, NEO-Five Factors Inventory (NEO-FFI), and Test of English as a Foreign Language (TOEFL). Two hundred and thirteen Iranian female university level learners of English language as a university major in Iran were the volunteer to participate in this research work. The intact classes were chosen. The results show that there is a significant relationship between the Extraversion trait and use of the each of three of the six categories of ELLSs (Memory Strategies, Meta-cognitive Strategies, and Social Strategies). (Contains 3 tables.)