The Sultanate of Oman joined the United Nations Convention against Corruption (UNCAC) by the Royal Decree No. 64/2013, reflecting the commitment of the Government of the Sultanate of Oman to standards of integrity and transparency, as well as to its firm desire to cooperate with the international community of nation-states and competent organizations in efforts that would restore justice, eradicate illegal causes of public funds exploitation and combat all internationally prohibited acts of corruption.

The United Nations Convention against Corruption was adopted by the UN General Assembly in October 2003 and was entered into force on 14 December 2005; it is the most comprehensive and powerful anti-corruption convention worldwide. As of December 2016 it had been ratified by 181 countries. The Convention requires UN Member State parties to implement a wide range of institutional and legal measures, as well as practices, aimed at the prevention of corruption by all means.