Dark personality in the workplace has become an increasingly important topic over the last two decades. Probably with the acceptance that not all workplace behavior is positive and that, for example, abusive supervision (Tepper, 2000) and incivility (Cortina et al., 2001(Cortina et al., , 2017Yao et al., 2022) are prevalent in the workplace the interest in personality as an antecedent of those phenomena has risen (see Mackey et al., 2021, for a review). In this special issue, we collected contributions relating to dark traits, especially the dark triad including narcissism, Machiavellianism, and psychopathy, as well as related workplace constructs (e.g., abusive supervision, power motives, stressors). Similar to the prevalent literature, most papers focus on narcissism, and again similar to prevalent research, there is a strong focus on the leadership area (Braun, 2017). While follower dark personality is problematic (Schyns et al., 2019), researchers and practitioners are concerned about the disproportionately negative impact of leaders high in dark personality traits (e.g., Braun et al., 2018).Several of the contributions in this Topical Issue highlight the need for research in the workplace to acknowledge developments in personality research and consider different forms such as dimensions of vulnerable or collective narcissism (Gauglitz, 2021;Harms, 2022;Palmer et al., 2021;Schyns et al., 2022). The contributions also highlight the need for validated and equivalent measurement, so that results across studies using different approaches are comparable (Palmer et al., 2021).The contributions stem from different countries (e.g., Germany, the United Kingdom, and the United States), highlighting that dark personality in the workplace is a global issue. Different methodological approaches used across studies (e.g., experience sampling, cross-sectional survey, time-lagged design, and experimental vignette approaches) showcase the breadth of methods relevant to studying dark personality in the workplace.