Tourism hygiene has become an increasingly important component of destination management because tourists increasingly consider cleanliness, health, safety, and comfort when evaluating tourism experiences. This study aims to examine the role of tourism hygiene in supporting tourist trust and the sustainability of the modern tourism industry in Indonesia. This study employs a qualitative approach through library research and literature review. Relevant scientific articles, methodological and theoretical literature, policy documents, standards, and reports were selected based on their relevance to tourism hygiene, tourist perceptions and behavior, environmental health, tourist trust, destination competitiveness, and tourism sustainability. The literature was analyzed descriptively and interpretively through thematic synthesis to identify patterns and relationships across the reviewed studies. The findings indicate that tourism hygiene represents a multidimensional concept encompassing sanitation, personal hygiene, food safety, water quality, air quality, public facility cleanliness, waste management, and hygienic behavior. The literature synthesis further indicates that effective hygiene practices can strengthen perceived safety and perceived quality, which are associated with tourist trust, experience, and satisfaction. These dimensions may subsequently support destination image and reputation, positive word of mouth, revisit intention or loyalty, destination competitiveness, and tourism sustainability. However, the implementation of tourism hygiene in Indonesia continues to face challenges related to infrastructure, human resources, financing, monitoring, institutional coordination, stakeholder collaboration, and visitor and community behavior. Therefore, tourism hygiene should be integrated into destination governance and sustainability strategies through measurable standards, continuous monitoring, capacity building, adequate infrastructure, and cross-sector collaboration.