Rev. Sr. Agatha Ogochukwu Chikelue is a Nigerian Catholic Nun from the Congregation of Daughters of Mary Mother of Mercy (DMMM). She is from the Eastern part of Nigeria and an Ibo by tribe. Sr. Agatha is a native of Awkuzu in Oyi Local government Area of Anambra State though she was born and brought up in Aba Abia State also in the Eastern Nigeria.

Sr. Agatha currently lives and works in Northern Nigeria-Abuja under the Catholic Archdiocese of Abuja. She has served here for over 17 years. As the first daughter and second child of her parents (Chief Donald Obi and Mrs. Gladys Ndirika Chikelue), Sr. Agatha was born on February 25, 1973 into a family of six. Other members of her immediate family include: Basilia Nneka Okafor Nee Chikelue; Florence Chinenye Chukwurah Nee Chikelue, Aloysius Chike Chikelue, Fidelis Obi Chikelue, and Daniel Ndubisi Chikelue.

Sr. Agatha holds a B.Sc. Degree in Public Administration and a M.Sc. in International Affairs and Diplomacy. She is the Director of the Catholic Archdiocese of Abuja Liaison Office; Secretary of the Interreligious Dialogue Office of the Catholic Archdiocese of Abuja; and, Co-Chair of the Women of Faith Peacebuilding Network WOFPN. Her interest in peacebuilding and interreligious dialogue initiatives began some years ago as a result of the  incessant ethno-religious violence in her home country. Her hunger for inter-ethnic and interreligious harmonious relations manifested through her committed efforts in bridging divides across religious and ethnic lines in Nigeria. Her passion for peaceful co-existence in Nigeria motivated her to build a movement of Christian & Muslim women who will stand up against violence and work  for peace in Nigeria called Abuja Women of Faith Network. She co-founded similar initiatives in Nigeria at the youth and children levels.

Her experiences after years of peacebuilding work in Nigeria have made her understand that peacebuilding and development are interlinked but cannot be achieved without justice, forgiveness, and reconciliation. It has also shown her that there are gender factors that need to be considered when disputing, negotiating, and resolving differences. In all her peace activities in Nigeria, Sr. Agatha realizes that interreligious dialogue is the key to conflict prevention and management, which is why she strongly believes in a non-violent approach to conflict through dialogue and actively involving women in the peace processes.