George Ramsay Cook (born November 28, 1931), is a Canadian historian and general editor of the Dictionary of Canadian Biography . He was professor of history at York University for 25 years until 1996.

His works on the history of Canada include:

• The politics of John W. Dafoe and the Free press 1963
• Canada and the French Canadian question 1966
• The Maple leaf forever 1971
• Canada 1896-1921: a nation transformed, with Robert Craig Brown 1975
• The regenerators: social criticism in late Victorian Canada 1985
• Canada, Quebec and the uses of nationalism 1986

He received the Governor General's Award for non-fiction in 1985, is a Fellow of the Royal Society of Canada and an Officer of the Order of Canada.

In 1997, the Ramsay Cook Research Scholarship was established at York University to honour his contribution to the field of history.

Politically, he publicly supported Pierre Elliott Trudeau in his attempt to gain the leadership of the Liberal Party of Canada in 1968.