This study aims to evaluate the implementation of the Noken system as a local wisdom based mechanism for public decision making and to analyze its potential integration with formal governance in Highland Papua Province. The study employs a qualitative approach with an evaluative study design. The research was conducted among indigenous communities in Highland Papua Province, with informants purposively selected to include traditional leaders or Big Men, local government officials, and community members, including women and youth groups. Data were collected through participatory observation, in depth interviews, and documentary analysis of regulations and documents related to Noken based decision making practices. Data analysis was conducted through data reduction, data display, and conclusion drawing, supported by source and methodological triangulation. The evaluation focused on four dimensions: social legitimacy, administrative accountability, participatory inclusiveness, and the effectiveness of the decision making process. The findings indicate that the Noken system plays an important role in strengthening social legitimacy and maintaining community harmony through consensus based deliberation. However, its implementation faces challenges related to administrative accountability, limited participation of women and youth, and the mismatch between the pace of customary deliberation and bureaucratic efficiency requirements. The findings further demonstrate that social legitimacy established through customary mechanisms does not necessarily correspond to inclusive democratic legitimacy. Therefore, this study proposes a hybrid governance model through the synchronization of recognition of customary agreements with administrative documentation, the strengthening of participatory mechanisms through the Noken Terbuka concept, and the development of digital documentation that does not replace customary deliberation processes. This model is intended to promote culturally responsive bureaucracy while maintaining the principles of participation, transparency, protection of vulnerable groups, and public accountability.