The people of Muslim Mindanao in the southern Philippines overwhelmingly approved, in a plebiscite in 2019, the creation of a new and more autonomous region, raising hopes that the decades-long conflict in Mindanao would soon end. This article asserts that the Mindanao peace process is not just about peace talks between the government and the Moro Islamic Liberation Front, but it should also include the effective participation of grassroots organizations and community-based peace advocates in resolving local conflicts. It evaluates four significant contributions of grassroots-level, local organizations and NGOs to the peace process: (1) combating violent extremism, (2) broadening peacebuilding by local women’s organizations, (3) solving local conflicts and rido (clan wars), and (4) ceasefire monitoring and civilian protection.