George John Blewett (9 December 1873 – 9 August 1912) was a Canadian philosopher and theologian.
Born on 9 December 1873, in Yarmouth Township in Elgin County, Ontario, the son of William Blewett, a farmer, and Mary Baker, he was raised on a farm near St. Thomas, Ontario.
In 1906, he became the Ryerson Professor of moral philosophy at Victoria University.
In 1907, he wrote The Study of Nature and the Vision of God: With Other Essays in Philosophy.
He drowned while swimming, apparently the result of a heart attack, in Go Home Bay, Ontario, on 15 August 1912.