Robert Buchanan (1785–1873) was a Scottish minister and Professor of Logic and Rhetoric at the University of Glasgow, known as a dramatist and poet.
After completing his divinity course at the University of Glasgow, he was in 1812 licensed as a preacher of the Church of Scotland by the presbytery of Haddington, and in 1813 was presented to the parish of Peebles.
[1] In 1824 Buchanan was appointed assistant and successor to George Jardine in the chair of Logic and Rhetoric at Glasgow, becoming sole professor in 1827.
[1] As a philosopher he was influenced by his teacher James Mylne, and was wary of the philosophy of commonsense.
Following Jardine, and with the support of Mylne's successor William Fleming, he resisted attempts to bring Glasgow's courses more in line with those taught in England.