Frederick Henry de Vos (14 September 1857 – 23 July 1920) was a Ceylonese legal practitioner, genealogist and historian.
Frederick Henry de Vos was born in Galle on 14 September 1857, the oldest son of sixteen children, to Frederick William de Vos (1829-1883), a proctor of the Supreme Court of Ceylon, and his second wife, Henrietta Dorothea née Anthonisz (1832-1909), the younger sister of Peter Daniel Anthonisz.
[6] In April 1903 he was appointed as acting District Judge, Additional Commissioner of Requests and a Visitor of the Prison at Galle.
[7] He served with the Ceylon Light Infantry Volunteers, and was promoted to Lieutenant in 1891,[8] and then Captain.
[11] His translation of the Beknopte Historie for the Ceylon Branch of the Royal Asiatic Society is potentially the largest complete work which he authored.