AbstractAcross two studies, this exploratory research examines stigma faced by larger‐bodied people by exploring the phenomenon of weight‐based mistreatment (WBM), defined as interpersonal disrespect levied on a person explicitly due to their larger body size, at work. Through qualitative research we first describe distinct forms of WBM experienced by 175 self‐defined overweight US employees, as well as consequences of WBM for bullied targets and their organizations. Next, through a quantitative survey distributed to a separate sample of larger‐bodied workers, our exploratory evaluation of WBM found that it is all‐too common in many forms, including overt and covert aggression, microaggression, incivility, and benevolent, yet disrespectful comments oriented around a person's weight. One or more forms of these behaviours were experienced by 75% of our 1008‐person sample, with overt and covert aggression being most common, and coworkers most often perpetrating WBM. Drawing on objectification theory, we observe a host of harmful consequences ranging from diminished engagement, worsened professional interactions, and a lack of self‐care. Altogether, results reveal WBM is a substantial problem, and thus they serve as a call to action for HR professionals, managers, and inclusion advocates to better understand the experiences of this vulnerable population.