Attaccamento ai luoghi, identità giovanile e benessere: una ricerca in Europa e implicazioni per la comunicazione interculturale - This paper investigates the connections between place attachment, Well-being and cultural differences in students of three European countries: Italy, Uk and Romania. A sample of 445 participants was investigated on a number of issues, including reported Well-being (using the Satisfaction with Life Scale), place identity, place attachment and place preferences. The results show an existing direct link between place attachment and life satisfaction; this relationship becomes stronger during the adolescence. A second cluster of data shows an emerging need to integrate and to balance global and local sense of belonging to improve the subjective Well-being. The last evidence concerns the perceived place identity, because there’s a significant difference in managing the place meanings between cultural groups. In particular, the difference we found regards subjects who consider themselves citizens of other countries while residing in the three countries examined, and as such they presumably belong to linguistic and ethnic groups of long-time or recent immigration. This findings demonstrated the utility of the integration between Environmental and Positive Psychology, with the aim to investigate the suggested happiness-place links. The implications for new intercultural communication’s strategies are discussed.