AbstractWorking mothers in Malaysia face poor psychological well-being due to stress, worklife balance issues, and workplace bullying. Meanwhile, the presence of supervisor support could improve employees_ psychological well-being and mitigate work-related effects. However, studies regarding supervisor support and psychological well-being among low-income working mothers in Malaysia are scarce. Thus, this study investigated the relationship between work stress, work-life balance, workplace bullying and psychological well-being, the moderating role of supervisor support in these relationships, explored the experience of working mothers on supervisor support received in the workplace and identified essential supervisor support required. Employing mixed methodology and purposive sampling, 269 Malaysian working mothers (Mage = 38.15, SDage = 8.14) completed a survey, and 9 participants partook in a semi-structured interview. Accordingly, work stress was reported as the largest contributor to psych.....