Present research aimed at identifying how postgraduate students in Ireland were coping with stress and the relationship between coping strategies to wellbeing, considering the context of the covid 19 pandemic. The purpose of the current study was to determine the extent to which diverse postgraduate students were experiencing a various range of covid related stress, how do they cope with stressors and its relationship to their wellbeing. It was a cross-sectional and correlational study where measures of covid stress, coping strategies, psychological well-being and key demographics were collected through an online survey . Data were collected via UL Qualtrics by inviting postgraduate students of the University of Limerick (UL) in Ireland through email and social media posts. Total 109 postgraduates of UL participated in the research and data were analyzed by using SPSS ( version 23).To test the hypotheses of the study, Hayes’ process macro for mediation and moderation analysis in SPSS was employed. Findings demonstrated that covid stress was undermining the wellbeing of postgraduate students and informal coping strategies mediate the relationship between stress and wellbeing. Here informal coping strategies indicated exercise, listening to music or spending time with housemates for leisure activities. Whereas, formal emotional coping strategies (i.e.counseling) didnt either mediate or moderate the relationship between stress and wellbeing. However, majority of the student agreed that online anonymous wellbeing services would be beneficial for them to deal with covid related stress. Present study shed light emphasizing diverse postgraduate students’ wellbeing, and their emotional needs and support services at Irish Universities as Ireland is a global hub for highly diverse international students. This study developed two new covid related scales (i.e. stressors and coping scale) which also has a proferred practical and policy implications for the post-pandemic era.