El presente estudio analiza las propiedades psicométricas del Inventario de Problemas Interpersonales-32 (IIP-32) en población adolescente argentina (12-19 años). El IIP es el instrumento más utilizado internacionalmente para la evaluación de problemáticas interpersonales vinculadas a la salud mental en población adulta. A pesar de ello, existe un vacío de información respecto a su uso y propiedades en adolescentes. En Latinoamérica no se han encontrado estudios que hayan estudiado dicho instrumento en esta población. Los resultados posicionan al IIP-32 como un instrumento confiable y válido para el trabajo con dificultades interpersonales en población adolescente en Argentina. Palabras clave Inventario - Problemas interpersonales - Argentina - IIP-32 - Adolescentes ABSTRACT INVENTORY OF INTERPERSONAL PROBLEMS-32 (IIP-32): PSYCHOMETRIC PROPERTIES IN ADOLESCENTS FROM ARGENTINA The Inventory of Interpersonal Problems (IIP) is a widely studied instrument in the mental health field.While there have been some applications of this tool in adolescents, the majority of research has focused on the adult population. This study aims to examine the psychometric properties of the Inventory of Interpersonal Problems-32 (IIP-32) specifically in Argentinian adolescents. A total of 557 participants completed the IIP-32 alongside an additional assessment of interpersonal traits. To evaluate reliability, we analyzed internal consistency and item homogeneity. We analyzed the construct validity of IIP-32 through a confirmatory factor analysis and the concurrent validity through correlations between the IIP-32 and other measures of interpersonal traits. The findings of this study indicate adequate internal consistency and homogeneity of the items in the IIP-32. Furthermore, the results show construct validity. Overall, the results of this paper establish the IIP-32 as a reliable and valid instrument with significant clinical implications for assessing interpersonal difficulties in adolescents from Argentina. Keywords Inventory - Interpersonal problems - Argentina - IIP-32 - Ado-