Sir Douglas Strutt Galton KCB, GCB, F.R.S., MStJ, Chevalier of the Légion d'Honneur, DCL, LLD (2 July 1822 – 18 March 1899) was a British engineer.
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Following the family tradition, he was educated at Harrow School; in 1915 he married Ida Fenzi, granddaughter of Sir Douglas Strutt Galton and great-granddaughter of Emanuele Fenzi.