The aim of the present study was to explore the association between perceptions of interpersonal/informational justice and ambivalent sexism among Argentinean employees, and to examine the possible role that collectivism and individualism exert on this association. Participants (128 men and 120 women) completed a battery of instruments to measure the variables of interest. Results showed that perceptions of interpersonal and informational justice were negatively associated with hostile sexism, and that, unexpectedly, perceptions of informational justice were positively associated with benevolent sexism. Vertical collectivism and vertical individualism moderated the relationships between perceptions of interpersonal justice and hostile sexism. Findings are discussed in light of their theoretical and practical implications. Suggestions for future research are provided. Keywords: Sexism, values, interpersonal justice, informational justice Percepciones de justicia organizacional y sexismo ambivalente: el rol moderador del individualismo-colectivismo El objetivo del estudio fue, por un lado, explorar las relaciones entre percepciones de justicia interpersonal/informacional y sexismo ambivalente en empleados argentinos, y, por otro lado, examinar el posible rol que el individualismo y el colectivismo ejercen sobre tales relaciones. Los participantes (128 varones y 120 mujeres) completaron una batería 1