This research delves into the multifaceted identity of Tunis, exploring how its rich history, cultural diversity, and urban dynamics intersect to shape its sense of place and belonging. The main research question guiding this study is: What is the relation between urban & social changes and the loss of “the Port-city Identity” in Tunis? Through a multidisciplinary approach that combines urban anthropology, cultural geography, architectural analysis, the study examines various neighborhoods and public spaces in Tunis, including Lac1, Lac2, Rades, La Goulette, and Carthage. Using fieldwork, interviews, observations, and mental maps from participants, the research uncovers layers of meaning embedded within the city's built environment and collective memory. From the bustling port of Rades to the historic ruins of Carthage, each neighbourhood offers unique insights into Tunisian identity, reflecting a blend of ancient traditions, colonial legacies, and contemporary challenges. The study also explores how Tunisians interact with public spaces, navigate historical sites, and negotiate their sense of belonging, shedding light on the complex interplay between physical landscapes and social practices. A significant finding, revealed through field research, is the endangered situation of local fishermen. The research discovered that these fishermen, who are vital to the region's maritime culture and identity, are being pushed out due to urban development. Their informal docking spots, crucial for their livelihood, are at risk of disappearing, which could lead to their displacement and the loss of an essential element of the port city's identity. The findings underscore the importance of preserving cultural heritage, fostering dialogue, and promoting inclusive urban development in Tunis. By embracing diversity and its port city heritage, Tunis has the potential to emerge as a vibrant and resilient hub of creativity, innovation, and cultural exchange. This research contributes to a deeper understanding of Tunisian identity and offers insights for policymakers, urban planners, and researchers seeking to navigate the complexities of identity and urban space in the 21st century.