James Herbert Curle (18 October 1870 – 26 December 1942) was a Scottish mining engineer, traveller, writer, eugenicist, and philatelist. He wrote The Gold Mines of the World as well as autobiographical and travel works of a philosophical turn. He was a member of the Eugenics Society and published To-day and To-morrow: The Testing Period of the White Race (1926) in which he surveyed the races of the world and argued that the white race was being out-bred by other races and its purity being eroded through inter-breeding with other races.