This paper explores the dynamics of cross-border relations, ethnic diversity and the role of sub-state actors in border regions, focusing on the Austrian–Italian border. Using a transnational regionalism lens, it examines how minorities, majorities, sub-state political elites and the media perceive and utilise cross-border spaces. The findings reveal contested perspectives among sub-state political elites, influenced by historical conflicts, while the media emphasise the connective role of the state border. Furthermore, autonomist parties and representatives contribute to framing cross-border cooperation as a means of connection and shared territorial policymaking. The research highlights the potential of sub-state to foster inclusive cross-border relations in minority contexts and empower minority communities in border regions, offering insights into integration and connection beyond ethnic and territorial divisions.