SummaryWe investigate how gender harassment affects the romantic relationships (i.e., romantic relationship adjustment and romantic relationship efficacy) of female targets (spillover effects) and their romantic partners (crossover effects), and what role targets' anger in response to their gender harassment plays in these relationships. We explored these questions using two US samples. Sample 1 comprised 206 females, all of whom provided data on their gender harassment experiences, feelings of anger, and romantic relationship functioning. Sample 2 consisted of 60 romantic dyads. Females once again provided data on their gender harassment experiences and feelings of anger; their romantic partners reported on their own romantic relationship functioning. Full support emerged for hypothesized spillover effects: supervisor gender harassment indirectly and negatively influenced targets' romantic relationship adjustment and romantic relationship efficacy through target anger (Sample 1).Full support also emerged for hypothesized crossover effects: supervisor gender harassment indirectly and negatively influenced the romantic relationship adjustment and romantic relationship efficacy of targets' romantic partners through target anger (Sample 2). Implications for theory, research, and practice are considered. Copyright © 2014 John Wiley & Sons, Ltd.Keywords: gender harassment; sex-based harassment; spillover; crossover; work-family Sex-based harassment in the workplace harms employees and organizations. Whether expressed as gender harassment (GH; e.g., verbal/nonverbal behavior conveying hostile or degrading attitudes), unwanted sexual attention (e.g., repeated and unreciprocated requests for dates), or sexual coercion (e.g., sexual bribes or threats) (Fitzgerald, Gelfand, & Drasgow, 1995), sex-based harassment adversely affects psychological, physical, and job-related wellbeing (e.g., Dionisi, Barling, & Dupré, 2012;Willness, Steel, & Lee, 2007). Sex-based harassment is also costly to organizations, for example by reducing employee productivity (e.g., Faley, Knapp, Kustis, & Dubois, 1999). Research on sex-based harassment has focused mainly on consequences occurring within the organizational context, on direct harassment-outcome relationships, and on direct targets. Our goals in this study were to expand our understanding of sex-based harassment's extra-organizational consequences (i.e., on romantic relationship functioning), indirect effects (i.e., through target anger), and indirect victims (i.e., targets' romantic partners). To do so, we explore the following: (i) how sex-based harassment's negative consequences spillover (i.e., intrapersonal effects) and crossover (i.e., interpersonal, between-partner effects) into one's personal life and (ii) the role of targets' negative emotional responses in these relationships. Exploring the far-reaching and indirect consequences of sex-based harassment at work is important for several reasons. First, more research highlighting the diverse ways that workplace phenomena can impac...