Ross ministry
5th ministry of Ontario
The Hon. Sir George William Ross
Date formed	October 21, 1899 (1899-10-21)
Date dissolved	February 8, 1905 (1905-02-08)
People and organisations
Monarch	Victoria
Lieutenant Governor	Oliver Mowat (1899-1903) William Mortimer Clark (1903-1905)
Premier	George William Ross
Member party	Liberal Party
Status in legislature	Majority
Opposition party	Conservative
Opposition leader	James Whitney
History
Elections	1902, 1905
Legislature term	9th Parliament of Ontario 10th Parliament of Ontario
Incoming formation	resignation of Hardy
Outgoing formation	1905 Ontario general election
Predecessor	Hardy ministry
Successor	Whitney ministry

The Ross ministry was the combined cabinet (formally the Executive Council of Ontario) that governed Ontario from October 21, 1899, to October 2, 1905. It was led by the 5th Premier of Ontario, George William Ross. The ministry was made up of members of the Liberal Party of Ontario, which commanded a majority of the seats in the Legislative Assembly of Ontario.

The ministry replaced the Hardy ministry following the resignation of Premier Arthur Sturgis Hardy in 1899. The Ross ministry governed through the most of the 9th Parliament of Ontario, as well as all of the 10th Parliament of Ontario.

Ross lost the 1905 Ontario general election. He was succeeded as Premier of Ontario by James Whitney.

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