Maricas Unidas Argentinas

Maricas Unidas Argentinas (MUA; roughly "United Argentine Queers" in English) was a small clandestine mutual aid group formed in Buenos Aires that operated between the late 1940s and the 1950s, in an environment of intensified persecution of LGBTQ people in Argentina. The term marica is a Spanish-language slur comparable to "faggot" or "sissy" in English, and at the time was used by people who today would be read as effeminate gay men and those who would be considered trans women or travestis, before those concepts became widespread. MUA emerged as a mutual support network for those detained in the Devoto prison, where homosexuals (defined as "amorals") were sent in a context of intensified persecution.

Knowledge of MUA first emerged in the 2010s through testimonies by one of its founders, Malva Solís, and its existence was further substantiated in the 2020s with the rediscovery of a feature devoted to the group in the sensationalist magazine Ahora. While Solís places the group's origins around 1948, the Ahora chronicle maintains that it was in 1957. This means that the group predates Nuestro Mundo, often considered the first LGBTQ organization in Latin America, by at least 10 years, and has forced a more complex understanding of the history of the movement. It has been described as the first documented act of trans activism, and possibly the first LGBTQ organization in Argentina.