Sir George William Ross (September 18, 1841 – March 7, 1914) was an educator and politician in the Canadian province of Ontario.

During his time as an MP, he actively defended the Canada Temperance Act, which favoured the "local option" approach for implementing prohibition.

Rather than run again, Ross moved to provincial politics when he was offered the position of Minister of Education for Ontario in the Liberal government of Sir Oliver Mowat in 1883.

In the provincial election of 1902, the Liberal majority was cut to one seat, but at a time when parties lacked the discipline over their members they would later develop, that was not enough for a secure government.

Ross remained Liberal leader until 1907, when Prime Minister Wilfrid Laurier recommended him for an appointment to the Senate of Canada.