Pedro Santana y Familias, 1st Marquis of Las Carreras (June 29, 1801 – June 14, 1864), better known as Pedro Santana, was a Dominican military commander and royalist politician who served as the president of the junta that had established the First Dominican Republic, a precursor to the position of the President of the Dominican Republic, and as the first President of the republic in the modern line of succession.
A traditional royalist who was fond of the Monarchy of Spain and the Spanish Empire, he ruled as a governor-general, but effectively as an authoritarian dictator.
Born into a noble and affluent Spanish cattle ranching family in Hincha (today Hinche in Haiti), Santana was a lifelong supporter of the Dominican revolt against the Haitian hegemony and a noted general during the Dominican War of Independence (1844–1856).
Unlike many of his political opponents who wanted to ultimately establish an independent Dominican state, Santana sought to reintegrate Hispanola into the Spanish Empire.
He oversaw the reestablishment of the Captaincy General of Santo Domingo as well as exile and imprisonment of a number of noted separatist and nationalist dissidents who had previously been his comrades during the war of independence.
Under mounting pressure from the opposition which had been organizing a coup d'etat, he was forced to resign from his position.
He died during the Dominican Restoration War, after which the country regained its independence.