Don Pedro José Pidal y Carniado, 1st Marquis of Pidal (25 November 1799–28 December 1865) was a Spanish lawyer, writer, politician (alcalde, deputy and senator) and academician who served important political offices in the reign of Isabella II of Spain, including those of Minister of Gobernación (Interior minister), Minister of State (1848-1849 and 1856-8), Minister of Justice and Speaker (presidente) of the Congress of Deputies (1844-7).