The following Investigation Paper will approach a study over the evolution of the jurisprudence and legal regulations of same-sex couples rights, specifically over the right to be recognized as beneficiaries of a survivors’ pension in Colombia, and in recognized jurisdictions in Latin America. The purpose of this work is to carry out an analysis, study, and revision of jurisprudential and normative background on the protection and recognition of Social Security as a fundamental right that must be recognized to same-sex couples, who duly conform a marriage or marital union, according to the laws in force in Colombia. Likewise, the work is intended to study the current background and situations in the jurisdictions of Argentina, Uruguay, Mexico, and other Latin American countries. In its structure, the work manages to unite different areas of law such as Labour Law, Constitutional Law, Family Law and International Law, which have delved and have been fundamental in the decision-making of the Judicial Branch and the Legislative Branch by protecting and recognizing the rights of same-sex couples. Finally, this Paper seeks to propose a solution to the main legal problem, which is based on the absence of recognition of same-sex couples in the regulations on Social Security and its recognition as beneficiaries of a survivors’ pension in Colombia.