This study explored 'cultural diversity' in urban schools in Portugal by conducting discourse analysis on interviews with school practitioners. Findings show that 'cultural diversity' was dominantly anchored in Othering 'foreigners' that mainly associated 'non-native speakers' to difficulties in integration, participation and teachers'pedagogical work. However, contradicting discourses somewhat resisted Othering by highlighting meaningful differences, all students' rights, and calling for pedagogical changes. By showing the ambivalences in how students, teachers and pedagogical relationships are viewed, we both alert for an exclusionary conceptualization of 'cultural diversity', and question Othering as a fundamentalizing discourse to fully govern 'cultural diversity' in schools.