Lieutenant Colonel Sydney Price James CMG FRS (17 September 1870 – 17 April 1946) was a British physician, parasitologist, and malariologist who served in the Indian Medical Service.

An older brother went to South Africa with the navy and died from malaria in 1900, another was a keen photographer who invented Velox paper, and still another became a farmer in Rhodesia.

He was posted in Waziristan in 1897 to deal with a plague outbreak and later joined the Tochi Valley Expedition during which he was invalided by typhoid back to England.

When the Panama Canal opened in 1910 he was put in charge of measures to prevent the entry of yellow fever into India which included visits to ports around the world.

He retired from the Indian service in 1918 and joined the ministry of health, living for much of the time afterwards in London and later at Bosham.

[2] James was elected Fellow of the Royal Society in 1931 and was a Prix Darling Laureate of the League of Nations (1934)[4] and made CMG in 1935.