An Lesbian, Gay, Bisexual, Trans, Queer (LGBTQ) movement emerged in the late 1970s during the Brazilian military dictatorship (1964–1985), as the country slowly moved toward democracy. The “Homosexual Movement,” as it was called at the time, along with feminist and black organizations that formed during the same period, fought for an end to discrimination, equality, and full rights. Since then, LGBTQ activists have challenged stereotypes about lesbians, gay men, and trans people and won some important victories, such as same-sex marriage, legal recognition of trans people’s rights to legalize their gender identity, and constitutional protection against hate speech, although discrimination and violence against LGBTQ people is still widespread. The movement challenged traditional Catholic Church notions of homosexuality as a sin, medico-legal discourses that considered same-sex and nontraditional gender performances as sicknesses, conservative political ideologies that privileged the heteronormative family, and sectors of the Left that considered homosexuality a product of “bourgeois decadence.” Built upon a long history of resistance to impositions of compulsory heterosexuality and normative gender roles, lesbians, gay men, and trans people formed diverse communities during the second half of the 20th century that offered important support networks. They also appropriated public spaces for dissident sexualities and gender performances. Carnival became a privileged site for subverting traditional gender roles. Gay activists pushed the government to change initial conservative policies dealing with HIV/AIDS, and Brazil became an international model for effectively combating the disease. Lesbians fought within the feminist movement for acceptance and against social norms that marginalized them. Trans people gained considerable respect and certain rights. The LGBTQ movement remains diverse in practice, composition, and ideologies. A recent reactionary backlash, which has united conservative Catholics, evangelical Christians, and right-wing political forces, is trying to undo the advances made since the late 1970s in favor of social toleration, respect, and equality.