Language assessment literacy (LAL), mainly defined as knowledge and skills of language assessment, in the last two decades, has started to receive the attention it deserves. As one of the significant findings, based on a plethora of research, many second language (L2) teachers have been indicated to be professionally incompetent in terms of LAL. To investigate the status of LAL among Iranian English teachers, the present study was conducted. Three hundred and nine English teachers participated in answering a questionnaire. Besides, 24 teachers were interviewed based on a semi-structured interview. Both qualitative and quantitative data analysis and interpretation techniques were employed to find answers to the research questions which sought to investigate the features of language assessment literacy in language teachers' perceptions. The findings indicated that, overall, LAL is of concern to Iranian L2 (English) teachers. However, they also agree that their current level of both knowledge and practice in terms of LAL is not ideal. Furthermore, it was found that, as the teachers perceive it, assessment promotes learning and teaching; the nature of teacher-learner relationships affects evaluation; and, testing and assessment are seen as challenging notions due to their mathematical concepts and statistics. The findings will contribute to a more profound perception of LAL and better planning and executing the programs for L2 teachers regarding the issue.