The second Cabinet for Ontario, Canada consisted of Premier Edward Blake four other Cabinet ministers.[1]
The second ministry succeeded the Patent Combination Ministry of John Sandfield Macdonald when it fell December 20, 1871. It would survive less than a year, ending October 25, 1872, when Blake and his Treasurer Alexander Mackenzie chose to serve in the federal parliament and resigned their provincial seats when the practice of serving in both parliaments was banned by the Ontario legislature.
| Premier and Attorney General of Ontario | Edward Blake | 1871 | 1872 |
| Treasurer | Alexander Mackenzie | 1871 | 1872 |
| Commissioner of Crown Lands | Richard William Scott | 1871 | 1872 |
| Provincial Secretary and Registrar | Peter Gow | 1871 | 1872 |
| Agriculture and Public Works | Archibald McKellar | 1871 | 1872 |