In this paper, we identify the prerequisites for teacher educators in Southeast Asia through a comparative analysis of the content of open recruitment documents for teacher educators in Thailand, Cambodia, and Vietnam. We employ the four-step comparative analysis method (Bereday, 1964), which is appropriate for interpreting educational phenomena (Manzon, 2014). We conducted a comparative analysis of teacher educators’ open recruitment documents between 2018 and 2021 in their respective countries. Upon tabulating the information, we found that teacher educators are required to have a master’s degree or higher, English language skills, teamwork, and professional ethics. However, experience as a schoolteacher is not required in Thailand or Vietnam but is necessary for Cambodia. Consequently, Thailand and Vietnam face challenges in guiding teaching practice, and Cambodia requires action research training.