General Sir Charles Warren, GCMG, KCB, FRS (7 February 1840–21 January 1927) was an officer in the British Royal Engineers, and in later life was Commissioner of Police of the Metropolis, the head of the London Metropolitan Police, from 1886 to 1888, during the period of the Jack the Ripper murders.
Warren was born in Bangor, Gwynedd, Wales, the son of Major-General Sir Charles Warren. He was educated at Bridgnorth Grammar School and Wem Grammar School in Shropshire. He also attended Cheltenham College for one term in 1854, from which he went to the Royal Military College, Sandhurst and then the Royal Military Academy at Woolwich (1855–1857). On 27 December 1857, he was commissioned a Second Lieutenant in the Royal Engineers. On 1 September 1864, he married Fanny Margaretta Haydon (died 1919); they had two sons and two daughters. Warren was a devout Anglican and an enthusiastic freemason.
From 1861 to 1865, Warren worked on the survey of Gibraltar. From 1865 to 1867, he was an assistant instructor in surveying at the School of Military Engineering in Chatham.