Online English Teaching and its Challenges at Vinh university during the Covid era The present study attempts to identify the difficulties in online English teaching of English teachers at Vinh University during the Covid period. The data were collected through an online five-point rating scale questionnaire and follow-up interviews with 17 English teachers, who voluntarily participated in the study. The results of the data analysis showed that teachers have many obstacles in the teaching process in terms of unstable internet connection and students' awareness. Some solutions to overcome these difficulties will be also presented in this study with a viewing of improving the quality of online English teaching to EFL tertiary students. KEYWORDS: online English teaching, online teaching, challenges, covid era, Vinh University