Homosexual activity is legal in Argentina.

In 2010, Argentina became the first country in Latin America to legalize gay marriage. The Senate passed the bill by a narrow margin (33 votes in favor, 27 against, and 3 abstained). Argentina was the tenth country in the world to enact marriage equality.

In Argentina, there are no laws restricting the discussion or promotion of LGBTQ+ topics.

People have a right to change their legal gender without approval from a doctor or a judge. Sex reassignment surgery and hormonal treatments are not required, but they are provided by the state for free to anyone who requests them.
Several people had had their legal gender changed before the Gender Identity Law through court decisions, including popular actress, TV host and trans woman Flor de la V.

Decree 62/2025 signed by President Javier Milei, in force since February 7, 2025, replaced article 11 of Law No. 26,743 on Gender Identity, with the following:

ARTICLE 11.- Right to free personal development. All persons over EIGHTEEN (18) years of age may, in accordance with article 1 of this law and in order to guarantee the enjoyment of their comprehensive health, access total and partial surgical interventions and/or comprehensive hormonal treatments to adapt their body, including their genitalia, to their self-perceived gender identity, without the need to request judicial or administrative authorization.

To access comprehensive hormonal treatments, it will not be necessary to prove the will in the surgical intervention of total or partial genital reassignment. In both cases, only the informed consent of the person will be required.

The public health system's effectors, whether state, private or part of the social security subsystem, must permanently guarantee the rights recognized by this law.

All health benefits contemplated in this article are included in the Mandatory Medical Plan, or the one that replaces it, as regulated by the implementing authority.

Persons under EIGHTEEN (18) years of age will not be able to access the interventions and treatments referred to in this article.

Decree in place since july 21th of 2021 as of Presidential Decree N ° 476/21. Recognizing identities outside the male and female binomial by incorporating the nomenclature "X" in the National Identity Document as an option, for all people who do not identify themselves as male or female.

Argentina recognizes international convention on human rights. LGBT individuals are explicitly protected in the military code but is not explicitly included in the general discrimination protection code.

According to ILGA: Since 2021, Article 7 of Law on Promotion of Access to Formal Employment for Transvestites, Transsexuals and Transgender Persons (Law No. 27,636) expressly prohibits discrimination in employment on the basis of "gender identity and gender expression".

Pending nationwide.

Same-sex adoption is legal in Argentina.

In 2018, Bill No. 7037-D-2018 aimed at banning involuntary and/or unnecessary medical treatments and procedures that modify a person's sexual characteristics was presented in the Argentine Federal Congress, but had not been approved.

In 2019, the Comprehensive Protection of Sex Characteristics Bill (2019) with similar objectives was presented in the Chamber of Deputies of the Argentine Federal Congress, however, in 2021, it was reported that the bill had been withdrawn from consideration.

In 2022, the previous bill was reintroduced in the Chamber of Deputies with the support of several sponsors as Bill No. 6041-D (2022).

There has never been a formal ban on the military service of trans people in the Argentine Armed Forces. And in 2021, following decree Law No. 721, military service for trans people began to be encouraged through a system of positive discrimination that began to reserve 1% of all military service vacancies for trans people.

In 2015, the ban on blood donations by MSMs was lifted.

Article 3(c) of the Law on Mental Health (2010) establishes that a person cannot be diagnosed on their mental health exclusively on the basis of their "sexual choice or identity”. It prevents health professionals, particularly psychiatrists, from legally engaging in sexual orientation change efforts (SOCE).
Additionally, at the subnational level, in December 2020, the province of Santa Cruz passed the Integral Law for the recognition and historical reparation of the rights of trans persons (Law No. 3.724), which prohibits "aversion therapies" for trans people under Article 24.