This study investigated the relationship between Iranian English language teaching (ELT) instructors' beliefs about language teaching and their actual classroom practices. 369 ELT instructors and 512 students from state universities and Islamic Azad University branches participated by completing questionnaires about instructors' beliefs and the application of those beliefs in practice. Interviews with 9 instructors also provided qualitative data. The results revealed a positive significant relationship between instructors' expressed beliefs and their real classroom practices. The findings suggest implications for improving teacher education programs and supporting reflective teaching.