I-Ostreliya (noma I-Australiya; isiNgisi: Australia) izwe nezwekazi elikhulu lase-Ostreliya. Isiqongo sase-Ostreliya i-Khanbhera (Canberra). Ulimi isiNgisi. isiNgisi sase-Ostreliya Australian English isiPitjantjatjara Pitjantjatjara isiWajari Wajarri isiGupapuyingu Gupapuyŋu I-Ostreliya izuphi letspek izsokul.