Sir Richmond Thackeray Willoughby Ritchie KCB ISO (6 August 1854 – 12 October 1912) was a British civil servant.
[1] He was born in Calcutta, British India, the third son of the jurist William Ritchie (1817–1862) and his wife, Augusta Charlotte Trimmer.
[1][3] In 1877 Ritchie entered the India Office through open competition, as a junior clerk.
He acted as Private Secretary to a number Under-Secretaries of State, both Parliamentary and Permanent: from 1895 to 1902 he worked for Lord George Hamilton.
[1] Ritchie was knighted in 1907, and upon the retirement of Sir Arthur Godley in 1910 he became the Permanent Under-Secretary of State, a position he continued to hold until his death.