In Australia there is growing interest in a national curriculum to replace the variety of matriculation credentials managed by State Education departments, ostensibly to address increasing population mobility. Meanwhile, the International Baccalaureate (IB) is attracting increasing interest and enrolments in State and private schools in Australia, and has been considered as one possible model for a proposed Australian Certificate of Education. This paper will review the construction of this curriculum in Australian public discourse as an alternative frame for producing citizens, and ask why this design appeals now, to whom, and how the phenomenon of its growing appeal might inform national curricular debates. The IB's emergence is understood with reference to the larger context of neo-liberal marketisation policies, neo-conservative claims on the curriculum and middle-class strategy. The paper draws on public domain documents from the International Baccalaureate Organisation and newspaper reportage to demonstrate how the IB is constructed for public consumption in Australia. (Contains 2 tables and 1 note.)