This chapter examines how sustainable tourism governance can strengthen territorial resilience in Tunisia during its post-revolution institutional transition. Tunisia’s tourism sector, long reliant on a mass-market coastal model, has revealed its fragility through challenges such as political instability, climate pressures, and the COVID-19 pandemic. To explore these dynamics, a qualitative design was employed, combining interviews with national officials and focus groups with regional stakeholders. The findings indicate persistent governance challenges, including centralized decision-making, fragmented responsibilities, outdated legislation, and limited participation from local stakeholders. They also highlight potential growth in ecotourism, community-based tourism, and digital innovation. The analysis underscores the importance of participatory governance, stronger coordination across ministries, and the modernization of regulatory frameworks. Using the Tunisian case, the chapter demonstrates how governance failures weaken territorial resilience, and how reforms that expand participation, improve coordination, and update regulation can create pathways for more sustainable tourism in developing and transitional contexts. Taken together, these results demonstrate that decentralized, participatory, and better-coordinated governance is pivotal for strengthening Tunisia’s territorial resilience.