Douglas Miller Reid(1897–1959) was a 20th-century Scottish schoolmaster and noted amateur botanist and botanical author.
In 1918, aged only 21, he became a Member of the Linnean Society of London, later being elected a Fellow (FLS). From 1921 until 1953 he was Biology Master of Harrow School. He was also Curator of the Butler Museum.
He died suddenly on 4 September 1959 at his home, House of Stoer near Lairg in Sutherland in northern Scotland.
- Animal Classification and Distribution (1925)
- Introduction to Biology
- Botany for the Gardener (1966)
- Proceedings of the Linnean Society of London 1960
- Biographical Index of Former Fellows of the Royal Society of Edinburgh 1783–2002 (PDF). The Royal Society of Edinburgh. July 2006. ISBN 0-902-198-84-X.