This research is conducted with the aim of studying presenteeism among teachers and administrators in Moroccan public schools. It seeks to enhance knowledge and understanding of a recently recognized subject, namely, presenteeism. Presenteeism is a novel concept in organizational behavior that describes an individual who is physically present yet mentally disengaged. It denotes productivity that falls below expectations despite the employee's attendance and presumed competence, and it encompasses subpar performance by an employee who reports to work while being unwell. It also includes a phenomenon of excessive presence in the workplace. Empirical research on presenteeism is reasonably plentiful, mostly in the domains of medical and management, but empirical studies in the realm of education are exceedingly scarce. This research seeks to enhance our comprehension of presenteeism by identifying the factors that compel teachers and administrators to engage in it, as well as by elucidating the repercussions that ensue from this behavior. This study is carried out at primary and secondary schools in Casablanca, specifically at the Elfida Mers Sultan Directorate, using a sample of 32 instructors and 20 administrators. Key findings indicate that presenteeism is an under-recognized but widespread phenomenon, with 55.8% of participants admitting to having worked while ill. Contributing factors identified were workplace conflicts, demanding schedules, health problems, burnout, advanced age and lack of training in this area among administrators. The effects of presenteeism have a negative impact on student engagement, academic performance and lead to behaviors such as inattention and classroom disruptions.