Status of same-sex union 
Nicaragua does not currently recognise same-sex marriages or civil unions.
Civil unions.
Nicaragua recognises de facto unions ("uniones de hecho") for cohabiting opposite-sex couples. Article 83 of the Family Code defines de facto unions as "a voluntary agreement between a man and a woman". Couples in these unions are offered the same rights as married couples, but are required to have lived together for at least two years in a "stable and notorious manner". Ramón Rodríguez, professor of criminal law and human rights at the Central American University, argues that the provisions "establishing marriage and stable de facto unions as between a man and a woman only constitute a violation of the universal principle of equality and non-discrimination".
Same-sex marriage.
Background.
Article 72 of the Constitution of Nicaragua states that:
 ;templatestyles src="Template:Blockquote/styles.css" / ;Marriage and stable unions are protected by the State; they rest on the voluntary agreement between a man and a woman, and may be dissolved by mutual consent or by the shall of one of the parties. The law shall regulate this matter.
In 2012, responding to a request from human rights groups to discuss the legalisation of same-sex marriage, a deputy from the Sandinista National Liberation Front said "they had to wait another 30 years for that to happen".
In June 2014, the Nicaraguan Congress approved a revised family code limiting marriage, de facto unions and adoption to heterosexual couples. The new code went into effect on 8 April 2015. Article 53 of the Family Code describes marriages as "a voluntary union between a man and a woman".
2018 Inter-American Court of Human Rights advisory opinion.
On 9 January 2018, the Inter-American Court of Human Rights (IACHR) issued an advisory opinion that parties to the American Convention on Human Rights should grant same-sex couples "accession to all existing domestic legal systems of family registration, including marriage, along with all rights that derive from marriage". The ruling states that:
 ;templatestyles src="Template:Blockquote/styles.css" / ;The State must recognize and guarantee all rights derived from a family bond between persons of the same sex in accordance with the provisions of Articles 11.2 and 17.1 of the American Convention. (...) in accordance with articles 1.1, 2, 11.2, 17, and 24 of the American Convention, it is necessary to guarantee access to all the existing figures in domestic legal systems, including the right to marry. (..) To ensure the protection of all the rights of families formed by same-sex couples, without discrimination with respect to those that are constituted by heterosexual couples.
Nicaragua ratified the American Convention on Human Rights on 25 September 1979 and recognized the court's jurisdiction on 12 February 1991. LGBT groups applauded the decision. The Mexican newspaper "Milenio" reported that the advisory opinion came as a "shock" to LGBT activists. Ludwica Lega, head of the Nicaraguan Trans Association, said he was "happy" with the decision, but that "in the case of Nicaragua we are focused on priority issues such as improving the Health Law, to end discrimination, full access to education, and recognition of gender identity."
Public opinion.
According to a Pew Research Center survey conducted between 9 November and 13 December 2013, 77% of Nicaraguans opposed same-sex marriage, 16% were in favor and 7% were undecided.
The 2017 AmericasBarometer showed that 24.5% of Nicaraguans supported same-sex marriage.
A survey published by the Nicaraguan Foundation for Economic and Social Development in January 2021 showed that 29% of Nicaraguans supported same-sex marriage.
References.
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