The Ninth Canadian Ministry was the first cabinet chaired by Prime Minister Sir Robert Borden. It governed Canada from 10 October 1911 to 12 October 1917, including only the 12th Canadian Parliament. The government was formed by the old Conservative Party of Canada. The Conservatives governed in coalition with the Liberal-Conservative Party until 12 October 1916 when the last Liberal-Conservative cabinet minister, Sam Hughes, was dismissed. Borden was also Prime Minister in the Tenth Canadian Ministry, which he formed for the coalition government with the Liberals.
Charles Ballantyne, Minister of Public Works 3–12 October 1917.
Pierre Édouard Blondin, Minister of Inland Revenue 1914–1915; Secretary of State for Canada and Registrar-General 1915–1917; Minister of Mines 1915–1917; Postmaster-General January–October 1917.
Sir Robert Borden, Prime Minister and Secretary of State for External Affairs 1911–1917; President of the Privy Council 1911–1917.
Martin Burrell, Minister of Agriculture 1911–1917.
Thomas Chase-Casgrain, Postmaster-General 1914–1916.
Francis Cochrane, Minister of Railways and Canals 1911–1917.
Louis Coderre, Secretary of State for Canada and Registrar-General 1912–1915; Minister of Mines 1913–1915.
Thomas Wilson Crothers, Minister of Labour 1911–1917.
Charles Doherty, Minister of Justice and Attorney-General 1911–1917.
Sir George Eulas Foster, Minister of Trade and Commerce 1911–1917.
John Douglas Hazen, Minister of Marine and Fisheries and Minister of the Naval Service 1911–1917.
Sir Samuel Hughes, Minister of Militia and Defence 1911–1916.
Sir Albert Edward Kemp, Minister without Portfolio 1911–1916; Minister of Militia and Defence 1916–1917.
Sir James Alexander Lougheed, Minister without Portfolio 1911–1917.
Arthur Meighen, Solicitor-General 1915–1917; Secretary of State for Canada and Registrar-General August–October 1917; Minister of Mines August–October 1917.
Frederick Debartzch Monk, Minister of Public Works 1911–1912.
Wilfrid Bruno Nantel, Minister of Inland Revenue 1911–1914; Minister of Mines 1911–1912.
Esioff-Léon Patenaude, Minister of Inland Revenue 1915–1917; Secretary of State for Canada and Registrar-General January–June 1917; Minister of Mines January–June 1917.
Louis-Philippe Pelletier, Postmaster-General 1911–1914.
Sir George Halsey Perley, Minister without Portfolio 1911–1916; Minister of Overseas Military Forces 1916–1917.
John Dowsley Reid, Minister of Customs 1911–1917.
William James Roche, Secretary of State for Canada and Registrar-General 1911–1912; Minister of the Interior and Superintendent-General of Indian Affairs 1912–1917; Minister of Mines 1912–1913.
Robert Rogers, Minister of the Interior and Superintendent-General of Indian Affairs 1911–1912; Minister of Mines March–October 1912; Minister of Public Works 1912–1917.
Albert Sévigny, Minister of Inland Revenue January–October 1917; Secretary of State for Canada and Registrar-General June–August 1917; Minister of Mines (acting) June–August 1917.
Sir William Thomas White, Minister of Finance and Receiver-General 1911–1917.
Parliamentary Undersecretary of State for External Affairs
Hugh Clark, 1916–1917.
Parliamentary Secretary of Militia and Defence
Fleming Blanchard McCurdy, 1916–1917.
Solicitor-General
Arthur Meighen, 1913–1915.
Hugh Guthrie, 4–12 October 1917.
