In this article we seek to trace through the major stands of British Euroscepticism and concentrate, in particular, on the importance of a powerful ‘hyperglobalist’ Eurosceptical strand within British Conservatism. We investigate the British Conservatives' recent divisions over European integration, against the background of the party's increasingly marginal status in British party politics. The piece also draws on findings from two recent surveys of the attitudes of British parliamentarians to European integration, carried out by the Members of Parliament Project for the Economic and Social Research Council (ESRC). We explore how Conservative divisions of opinion are related in part to particular understandings of globalisation and regionalisation and attempt to show how globalist ideology has unexpectedly re-emphasised and bolstered the traditional nationalism of the Tory party and caused an increasingly hostile attitude amongst many British Conservatives towards the European project as it is presently constituted. We also examine recent attempts to map British Conservative Euroscepticism on to continental varieties using a mixture of ideological positioning and party system (Taggart 1998), arguing that this ignores the extent to which British Eurosceptics advance unique (in EU member state terms) hyperglobalist (rather than isolationist or protectionist) arguments in objecting to further European integration.