Responsibility has always been one of the major concerns of teachers and those who are involved in the teaching-learning process. This is the way, since, if the sense of responsibility is improved and maintained in teachers, almost any other aspect of the teaching and learning environment would be considered safe. Therefore, the researchers tried to look for the possible relation between language teachers’ sense of responsibility and their professional identity. Thus, a group of 100 EFL teachers from language schools and different universities took part in the study. Two questionnaires that were previously proved to be valid and reliable were used as the instruments in this study. Regression was applied for the analysis of the data and the results indicated that there was a significant relationship between teachers’ professional identity and their responsibility. More specifically, it was revealed that there was a strong and positive relationship between teachers’ responsibility and motivation as one of the indicators of teachers’ professional sense of identity.
