This article examines the evolution of teacher education in Iran, with a specific focus on English language teacher training. Utilizing a qualitative analysis of historical documents, the study identifies six distinct periods in this evolution. The first period marks the foundation of teacher education with the establishment of the Dar al-Fonun School. The second period saw the formalization of teacher education through the Central and Higher Teacher Training Colleges. In the third period, teacher training expanded with the creation of Preliminary and Higher Colleges, focusing on multidisciplinary fields, including the French language. The fourth period introduced specialized programs, such as English language teaching, which replaced French. During the fifth period, teacher training centers reached their peak and then declined. Finally, the sixth period marks a shift in the educational system’s approach to teacher education, highlighted by the establishment of Farhangian University. Throughout these periods, English language teacher curricula evolved from classical and structural approaches to communicative and interactive methods. This shift not only highlights the changing pedagogical landscape in Iran but also underscores the need for curricula that better prepare teachers for contemporary classroom dynamics. The findings showcase the developmental trajectory of teacher education in Iran, emphasizing the need to address future challenges.