Mariano Ocampo is an Argentine lawyer and politician known for his work in human rights and legal reform. He served as the Secretary of Human Rights in Argentina and has been involved in various initiatives to address issues related to justice and accountability, particularly concerning the country's military dictatorship period. Ocampo gained international recognition for his role in the International Criminal Court and has contributed to discussions on transitional justice. His efforts have focused on ensuring that victims of human rights abuses receive justice and that similar violations do not occur in the future.