This thesis explores the current divide in the LGBTI or queer social movement industry in Santiago de Chile. Based on field interviews with Chilean activists in June 2013, it argues that the deployment and maintenance of hegemonic masculinity is ultimately at the root of the fissure. The introduction provides a brief history of the movement in Chile since the 1970's, as well as short introductions to each of the six social movement organizations in the study. Chapter 1 problematizes the recent rapid lexical change in which the term diversidad has come to mean `gay,' as well as it impact on social movement framing tactics, providing evidence of a nascent diversidad frame that has been coopted by hegemonically masculine actors. Chapter 2 explores the politics surrounding the passage of Chile's Ley AntidiscriminaciÃ³n and the murder of Daniel Zamudio, arguing that certain social movement actors deployed hegemonic masculinity to seize and maintain control of both the media frenzy and the passage of the law. Finally, Chapter 3 analyzes the ongoing fight for same-sex partnership recognition in Chile by problematizing the fight for the proposed Acuerdo de Vida en Pareja as well as marriage equality, arguing that these issues represent the interests of hegemonically masculine voices within the movement above all others.