This paper is set against a backdrop of contemporary concerns about Britishness. It explores the dominant view that unprecedented levels of cultural diversity within western contexts such as the UK are undermining social cohesion and are attributable to minority groups' failure to connect or assimilate with mainstream 'British' (read White Anglo) culture. The paper focuses on how these issues play out for several of the key teachers at 'Hamilton Court', a large English comprehensive multicultural school. Despite the school being a socially cohesive space, these teachers were concerned with students' lack of affiliation with 'British' culture. The paper examines these concerns through critical lenses that problematise reductionist and racialised understandings of Britishness and assumptions that associate an affiliation with Britishness with generating social cohesion. Against this backdrop, the paper provides further warrant for continued critical discussion about issues of Britishness, multiculturalism and schooling. teachers, consistent with Ms L's remarks, were concerned with students' lack of affiliation with 'British' culture. It is not contended here that such lack of affiliation is unproblematic-the paper supports the imperative of promoting a national identity around a shared vision of what it might mean to be British. However, it also supports and reiterates the ongoing significance of problematising narrow, fixed and racialised views of national identity and assumptions that associate an affiliation with Britishness with generating social cohesion and conversely, a lack of affiliation with Britishness with generating social conflict. Contemporary anxieties about national identity within public and education discourse are impacting on how teachers understand and approach issues of Britishness, especially in school contexts where there are high levels of ethnic minority diversity (Osler, 2011). Against this backdrop, the paper provides further warrant for continued critical discussion about these matters.