The Third Lyons Ministry was the twenty-third Australian Commonwealth ministry, and ran from 9 November 1934 to 29 November 1937.
United Australia Party–Australian Country Party Coalition
Rt Hon Joseph Lyons, MP: Prime Minister. Treasurer (to 3 October 1935). Vice-President of the Executive Council (from 6 November 1935). Minister for Health, Minister for Repatriation (6 November 1935 to 26 February 1936). Minister for Defence (from 20 November 1937) (UAP)
Rt Hon Sir Earle Page, GCMG MP: Minister for Commerce (CP)
Hon Robert Menzies, KC MP: Attorney-General, Minister for Industry (UAP)
Senator Rt Hon Sir George Pearce, KCVO: Minister for External Affairs, Minister in charge of Territories (UAP)
Hon Archdale Parkhill, MP: Minister for Defence (to 20 November 1937) (UAP)
Hon Sir Charles Marr, KCVO MP: Minister without portfolio (to 31 December 1934) (UAP)
Hon Thomas Paterson, MP: Minister for the Interior (CP)
Senator Hon Alexander McLachlan: Postmaster-General, Minister in charge of Development and Scientific and Industrial Research (UAP)
Hon Thomas White, MP: Minister for Trade and Customs (UAP)
Hon Richard Casey, MP: Assistant Treasurer (to 3 October 1935), Treasurer (from 3 October 1935) (UAP)
Rt Hon Billy Hughes, KC MP: Vice-President of the Executive Council (to 6 November 1935. Minister for Health, Minister for Repatriation (to 6 November 1935 and from 26 February 1936) (UAP)
Hon Sir Henry Gullett, KCMG MP: Minister without portfolio directing negotiations for trade treaties (to 11 March 1937) (UAP)
Senator Hon Tom Brennan, KC: Minister without portfolio, assisting the Minister for Industry, assisting the Minister for Commerce (UAP)
Hon Harold Thorby, MP: Minister without portfolio, in charge of War Service Homes (to 11 September 1936), assisting the Minister for Repatriation (to 1 September 1935), assisting the Minister for Commerce (from 1 September 1935) (CP)
Hon James Hunter, MP: Minister without portfolio, representing the Postmaster-General in the House of Representatives (to 11 September 1935), assisting the Minister for the Interior (from 23 September 1935), in charge of War Service Homes (from 11 September 1936), assisting the Minister for Repatriation (from 1 September 1935), assisting the Minister for Commerce (18 March 1937 to 25 July 1937) (CP)
