Lizardo Montero Flores (1832 in Piura, Peru – 1905) served as Acting President of the Republic of Peru in 1881-83, during the War of the Pacific. Lizardo Montero joined the Peruvian Navy in the decade of 1850. Seven years later, aboard the frigate Apurímac, he supported Manuel Ignacio de Vivanco's coup. Between 1858 and 1862 he travelled to Spain. In 1865, he supported General Mariano Ignacio Prado in his coup d'état against General Juan Antonio Pezet. He was then promoted to the rank of corvette captain and was in command of the Peruvian squad during the conflict with Spain in 1866.