Jonathon Duniam (born 31 December 1982) is an Australian politician. He is a member of the Liberal Party and has served as a Senator for Tasmania since the 2016 federal election. He served as an assistant minister in the Morrison Government from 2019 until May 2022, following the appointment of the Albanese ministry. Prior to entering parliament Duniam was a political staffer, including as deputy chief of staff to Tasmanian premier Will Hodgman.