Margaret Tibulya is a Ugandan judge born on August 14, 1966. She holds a Bachelor's Degree in Law from Makerere University, Kampala, a Diploma in Legal Practice from the Law Development Centre, a Master's Degree in Law and Development from the School of Oriental and African Studies (University of London), and a Master of Business Administration Degree from the Eastern and Southern African Management Institute (ESAMI). Margaret became a Pupil State Attorney in 1992 and rose through the ranks to become a Grade 1 Magistrate at the Chief Magistrates courts/Buganda Road and Mengo Courts. Between 2000 and 2008, she was the Chief Magistrate at the Chief Magistrates courts/Iganga, Masaka, Mbarara, and Buganda road courts. Following that, she served as the Deputy Registrar in Commercial and Criminal Divisions of the High Court from 2009 to 2013.

In 2013. Judge Margaret Tibulya became a Judge of the High Court of Uganda and is currently serving as the Deputy Head of the Anti-Corruption Court in Uganda. With over 25 years of judicial experience in labor and administrative matters, Margaret has served in other capacities, including a member of the Judiciary Terms and Reference Committee responsible for overseeing the operationalization of the Administration of Judiciary Act in Uganda. Justice Tibulya was appointed to the United Nations Dispute Tribunal for a non-renewable term of seven years in 2019 to fill one of four new half- time judicial positions at the Tribunal after garnering a resounding 110 votes out of 170.

Justice Tibulya is an ardent member of The Commonwealth Magistrates and Judges Association, The International Association of Women Judges, The East African Judges and Magistrates Association, The Association of Women Lawyers, The Association of Women Judges, and the Uganda Judicial Officers Association. She is the author of The Guide Book on Domestic Violence in Uganda.