Thomas Stevenson, 1880
|Alma mater||Edinburgh University|
|Employer||Northern Lighthouse Board|
|Children||Robert Louis Stevenson|
|Parents||Robert Stevenson (father)|
|Relatives||David Stevenson (brother)
Alan Stevenson (brother)
Thomas Stevenson PRSE MInstCE FRSSA FSAScot (1818–1887) was a pioneering Scottish lighthouse designer and meteorologist, who designed over thirty lighthouses in and around Scotland, as well as the Stevenson screen used in meteorology. His designs, celebrated as ground breaking, ushered in a new era of lighthouse creation.
The youngest son of engineer Robert Stevenson, and brother of the lighthouse engineers Alan and David Stevenson, between 1854 and 1886 he designed many lighthouses, with his brother David, and then with David's son David Alan Stevenson. He married Margaret Balfour and their son was the writer Robert Louis Stevenson, who caused him much disappointment by failing to follow the engineering interests of his family.
Thomas Stevenson was a devout and regular attender at St. Stephen's Church in St Stephen's Place, Silvermills, at the north end of St Vincent Street, Edinburgh.
He examined wind and wave effects, and his analysis  is the first quantitative discussion of wave height as a (square root) function of fetch. His paper  is one of the first quantitative studies of windspeeds in the planetary boundary layer. Motivated by practical applications, these are fundamental contributions.
Lighthouses designed by Thomas Stevenson
- Whalsay Skerries (1854)
- Out Skerries (1854)
- Muckle Flugga (1854)
- Davaar (1854)
- Ushenish (1857)
- South Rona (1857)
- Kyleakin (1857)
- Ornsay (1857)
- Sound of Mull (1857)
- Cantick Head (1858)
- Bressay (1858)
- Ruvaal (1859)
- Corran Point (1860)
- Fladda (1860)
- McArthur's Head (1861)
- St Abb's Head (1862)
- Butt of Lewis (1862)
- Holborn Head (1862)
- Monach Islands (1864)
- Skervuile (1865)
- Auskerry (1866)
- Lochindaal (1869)
- Scurdie Ness (1870)
- Stour Head (1870)
- Dubh Artach (1872)
- Turnberry Point (1873)
- Chicken Rock (1875)
- Lindisfarne (1877, 1880)
- Fidra (1885)
- Oxcar (1886)
- Ailsa Craig Lighthouse (1886)
- Richard Henry Brunton "Father of Japanese lighthouses"
- John Richardson Wigham Irish inventor and lighthouse engineer
- Waterston, Charles D; Macmillan Shearer, A (July 2006). Former Fellows of the Royal Society of Edinburgh 1783-2002: Biographical Index II. Edinburgh: The Royal Society of Edinburgh. ISBN 978-0-902198-84-5. Retrieved 31 December 2010.
- Tyndall A Story of Lighthouses page 827
- Stevenson, T. The Design and Construction of Harbors: A Treatise on Maritime Engineering, second ed. Adam and Charles Black, Edinburgh
- T. Stevenson, Report on Simultaneous Observations of the Force of Wind at Different Heights above the Ground, Journal of the Scottish Meteorological Society, LI-LIV, pp.103-107, 1880