Kammala wannan jumla: Rikicin shugaban kasa na Australiya yana nufin muhawara mai gudana game da wanda ake ganin shine shugaban kasar Australiya, Sarkin, Gwamna Janar, ko duka biyun. Shugaban ƙasa shine bayanin da aka yi amfani da shi a cikin kafofin hukuma don masarauta. Tsarin mulkin Ostiraliya bai ambaci kalmar "shugaban kasa" ba. A cikin tattaunawa an yi amfani da shi don bayyana mutumin da ke riƙe da matsayi mafi girma a cikin jami'an gwamnati. Yawancin marubuta, musamman Sir David Smith, sun yi jayayya cewa an fi amfani da kalmar don bayyana gwamnan-janar. An tattauna bambancin ra'ayi a cikin mahallin Ostiraliya ta zama jamhuriya, kuma an yi muhawara sosai a cikin jagorancin
zaben raba gardama a shekarar 1999.