This chapter will examine how Australia receives and approaches international law, and explore and assess Australia’s position within the schema of monist, dualist or a hybrid of both. This chapter will briefly examine the development of the Australian legal system, a common law system that developed as a result of Australia’s colonisation by the British in 1788. The chapter will then look at the Australian approach to and reception of international law, including the differing roles of the executive, judiciary and legislature. The chapter will examine how these branches of government have dealt with international law in treaty and customary form, and how the judiciary has negotiated and reconciled the complexities and ambiguities that arise out of the interaction between Australia’s international law obligations, and its domestic legal system. Finally, the chapter will then assess Australia’s relationship to international law within the monist-dualist dynamic.