Urban identity (UI) is a multi-faceted concept that encompasses different aspects of urban environment, built heritage and natural environment and is also related to important properties of the cities. The paper studies the associations between the inhabitants’ perceptions of UI and their socio-demographic profile. The city of Thessaloniki is the case study of this research. The research was based on data collection via structured questionnaires, and the results were statistically analyzed using: descriptive statistics, χ² analysis, crosstabs method, regression analysis and discriminant analysis. The results show that UI, being a generally unknown term to the public, incorporates the notions of history and culture, urban environment, social behavior and everyday life, and it is influenced by social and economic factors. The perceptions on the city’s identity are associated with gender, age and family status, as well as the way people spend their spare time. It emerges that, in Thessaloniki, a policy mix is necessary to preserve and upgrade the historical assets of the city, along with the improvement of its every day functions.

城市身份（UI）是一个多方面的概念，涵盖城市环境、建筑遗产和自然环境的不同方面，也与城市的重要属性有关。该论文研究了居民对 UI 的看法与其社会人口特征之间的关联。塞萨洛尼基市是这项研究的案例研究。这项研究是通过结构式问卷基础数据的收集，并使用进行统计学分析结果：描述统计，χ ²分析、交叉表法、回归分析和判别分析。结果表明，用户界面是一个普遍不为公众所知的术语，它融合了历史文化、城市环境、社会行为和日常生活等概念，并受社会和经济因素的影响。对城市身份的看法与性别、年龄和家庭状况以及人们打发业余时间的方式有关。看来，在塞萨洛尼基，政策组合对于保护和升级城市的历史资产以及改善其日常功能是必要的。