CPN's engagement in the Philippines has been chiefly in the Mindanao region in the south of the country, an area that has experienced much conflict between Christians, Muslims, and indigenous peoples. CPN has provided and continues to provide strategic advice and other forms of accompaniment to the Church as it moves forward on advocacy and implementation mechanisms for peace agreements, as well as transitional justice.
- In 2018, CPN co-sponsored and participated in "Theology and Practice of Just Peace and Pluralism: Dialogue Among Religious Leaders, Youth and Women Peacebuilders," part of a series of Interreligious Dialogue Learning Conferences led by CRS-Philippines.
- In 2017, the recipient of the joint fellowship between Catholic Relief Services and the Kroc Institute for International Peace Studies at the University of Notre Dame was Orson Sargado of CRS-Philippines. Other CRS-Kroc fellows from the Philippines have included Myla Leguro in 2006, and Bishop Colin Bagaforo in 2012.
- in 2014, Catholic institutions in Mindanao launched a peacebuilding network modeled on CPN.
- CPN supported a series of training and strategy sessions on peacebuilding in the region. A two-day session with seventy bishops in 2009 was followed over the next three years by a series of four sets of workshops for bishops, priests and diocesan staff of dioceses in Mindanao.
- The second annual international CPN conference on peacebuilding was held in Davao City in Mindanao in 2005.