| Honorific Prefix: | Lieutenant-Colonel |
| Francis Coningsby Hannam Clarke | |
| Honorific Suffix: | CMG, FRGS, FRCI |
| Birth Date: | 4 February 1842 |
| Birth Place: | Brussels, Belgium[1] |
| Death Place: | Hove, Brighton, England |
| Allegiance: | British Ceylon |
| Branch: | Ceylon Defence Force |
| Rank: | Lieutenant-Colonel |
| Unit: | Royal Artillery |
| Commands: | Commander of the Ceylon Volunteers |
Lt.-Col. Francis Coningsby Hannam Clarke (4 February 1842 – 27 August 1893)[2] was a British military officer and colonial administrator who served as the first Commander of the Ceylon Volunteers. He was appointed on 20 April 1888 until 27 August 1893. He succeeded William Wilby as General Officer Commanding, Ceylon. He was succeeded by Henry Byrde.[3]
He was the ninth Surveyor General of Ceylon. He was appointed in 1883, succeeding A. B. Fyers, and held the office until 1893. He was succeeded by David G. Mantell.[4]