Bertie ("Bert") Richard Milliner (17 July 1911 – 30 June 1975) was an Australian trade unionist, politician and Senator, representing the Australian Labor Party (ALP). He would have been a minor figure in Australia's political history but for the events that followed his sudden death. Those circumstances contributed to the 1975 Australian constitutional crisis, which culminated in the dismissal of the Prime Minister, Gough Whitlam, by the Governor-General, Sir John Kerr.