Frederic Deacon (January 1829 – October 1875) was a Belgian chess master.
He won a match against W. Gilby (2 - 1) and lost a match to Charles Edward Ranken (0 - 2) at London 1851 (Provincial, Samuel Boden won).[1] Deacon won matches against Edward Löwe (7.5 - 2.5) in 1851, and Carl Mayet (5 - 2) in 1852.[2] He drew against Paul Morphy (1 - 1) in 1858.[3]
He took 2nd, behind George Henry Mackenzie, at London 1862 (handicap),[4] shared 11th at London 1862 (the 5th BCA Congress, Adolf Anderssen won),[5] and lost a match to Wilhelm Steinitz (1.5 - 5.5) at London 1863.