Marietta Brew Appiah-Oppong (born in Tema), is a Ghanaian female legal practitioner, a former Attorney General of Ghana and Minister for Justice.

As an experienced litigator, her expertise includes, but is not limited to, commercial law, transactions and general corporate advice.

[6] After several years of legal practice, she was appointed and acted as Attorney General and Minister of Justice of the Republic of Ghana from February 2013 until her tenure ended in January 2017.

[9] As part of her schedules as Attorney General and Minister of Justice, she was the Legal Advisor to the Government of Ghana and represented the Presidency, the country, and its ministries and agencies in all major transactions.

[5] She was a member of the team that successfully won Ghana’s maritime dispute with Cote D’Ivoire at the International Tribunal on the Law of the Sea (ITLOS).