George Parkin Grant OC FRSC (13 November 1918 – 27 September 1988) was a Canadian philosopher, university professor and social critic. He is known for his Canadian nationalism, a political conservatism that affirms the values of community, equality and justice and his critical, philosophical analysis of the social and political effects of limitless technological progress. As a practising Christian, Grant conceived of time as the moving image of an eternal order illuminated by love.

Many of his writings express a complex meditation on and dialogue with the great thinkers of Western civilization including the "ancients" such as Plato, Aristotle, and Augustine of Hippo as well as "moderns" such as Georg Wilhelm Friedrich Hegel, Friedrich Nietzsche, Martin Heidegger, Leo Strauss, James Doull, Simone Weil and Jacques Ellul. Grant distinguished between civilizations of antiquity in which people believed that sacred stories, rituals and myths revealed universal order and the civilizations of modernity that came into being with the rise of Western science, the rapid development of industrial technologies and the prevailing belief that human beings are free to create (or will) their own order.

"We can hold in our minds the enormous benefits of technological society, but we cannot so easily hold the ways it may have deprived us," Grant wrote, "because technique is ourselves." He argued that the technological society has destroyed "the very systems of meaning" along with the language that expressed the highest human purposes. "Our vision of ourselves as freedom in an indifferent world could only have arisen in so far as we had analyzed to disintegration those systems of meaning, given in myth, philosophy and revelation, which had held sway over our progenitors."

Grant vigorously opposed euthanasia, which he defined as "deliberately causing the death of someone who is not already dying," and abortion, except where the mother's life is in danger, or in psychologically traumatizing instances of rape, especially of young girls. In the case of abortion, he argued that a woman's right to choose one "can only be made law by denying to another member of our species the right to exist" and, in the case of euthanasia, he wrote that rather than killing patients, doctors can alleviate their pain and fear. He warned that legal access to euthanasia (or assisted suicide) and abortion on demand could result in the killing of people considered less human or less valuable such as the aged, handicapped or the infirm.

Although he is considered the main theoretician of red Toryism, he expressed dislike of the term when applied to his deeper philosophical interests, which he saw as his primary work as a thinker. Recent research on Grant uncovers his debt to a neo-Hegelian idealist tradition, Canadian idealism, that had a major influence on many Canadian scholars and Canadian political culture more broadly.

Grant was born in Toronto on 13 November 1918, the son of Maude Erskine (née Parkin) and William Lawson Grant. He came from a distinguished Canadian family of scholars and educators. His father was the principal of Upper Canada College, and his paternal grandfather George Monro Grant was the dynamic principal of Queen's University. His maternal grandfather was Sir George Robert Parkin, also a principal at Upper Canada College, whose daughter Alice married Vincent Massey, the Canadian diplomat and first Canadian-born Governor General of Canada. Both of his grandfathers were strong proponents of the bonds between Canada and the British Empire, and this greatly influenced their grandson. His nephew Michael Ignatieff is a public intellectual and former Leader of the Opposition in the Canadian House of Commons. His niece Caroline Andrew was a political scientist. On 1 July 1947 he married Sheila Allen whom he had met at Oxford.^{[citation needed]}

Grant was educated at Upper Canada College and Queen's University from which he graduated with a history degree. He attended Balliol College at the University of Oxford on a Rhodes Scholarship, a trust his grandfather, George Parkin, had headed at one time. Upon winning the Rhodes Scholarship, he enrolled towards a degree in law at Oxford, but after the Second World War ended, and Grant had experienced a deeper personal engagement with Christianity, he decided to change studies. His Doctor of Philosophy research was interrupted by the war, and he was already teaching in Dalhousie University's philosophy department when he completed his thesis, The Concept of Nature and Supernature in the Theology of John Oman, during a year-long sabbatical in 1950. Grant was a faculty member at Dalhousie twice (1947–1960, 1980–1988), and at York University (1960–1961; he resigned before teaching) and McMaster University's religion department (1961–1980), which he founded and led in the 1960s and early 1970s. In 1977, he became an editorial advisor of the journal Dionysius,^{[citation needed]} which published his essay "Nietzsche and the Ancients: Philosophy and Scholarship" in 1979.

In George Grant: A Biography his struggles as a self-taught philosopher are highlighted.