Charles Piot (1812–1899) was a Belgian archivist, historian, numismatist and archaeologist who contributed 73 entries to the Biographie Nationale de Belgique.
Piot was born in Leuven on 17 October 1812, and was educated in the town.[1] He graduated from the State University of Leuven as Doctor of Law on 27 November 1834. As a lover of history, he sought a position in the State Archives, and was appointed archivist second class by ministerial decree on 7 August 1840.[1] His rival for the position, Alphonse Wauters, became archivist to the city of Brussels two years later. On 30 April 1847, Piot was promoted to archivist first class. From 1853 until 1870 he was seconded half a day per week to the Royal Library of Belgium.[1] He became chief of section in 1859, adjunct archivist in 1870, and archivist general of the realm in 1886. He also sat on the Commission des Monuments, the Commission royale d'Histoire and the Commission administrative de la Bibliothèque Royale, and in 1879 had become a member of the Royal Academy of Science, Letters and Fine Arts of Belgium. He retired in 1897.[1] He died in Saint-Gilles, Brussels, on 28 May 1899.