Monica Mary McWilliams (born 28 April 1954) is a Northern Irish academic, peace activist, human rights defender and former politician in Northern Ireland. In 1996, she co-founded the Northern Ireland Women’s Coalition (NIWC) political party and was elected as a delegate at the Multi-Party Peace Negotiations, which led to the Good Friday Peace Agreement in 1998. She is Emeritus Professor in the Transitional Justice Institute at Ulster University and continues her academic research into domestic violence. She also specialises in conflict resolution and working with women in conflict regions.