Pedro Alejandro Paterno (February 27, 1858 - March 11, 1911) was a Filipino statesman as well as a poet and writer.
He was the author of Pacto de Biyak-na-Bato (Pact of Biyak-na-Bato), first published in 1910. Among his other works include the very first Filipino novel written in Tagalog, Ninay (1907), and the first Filipino collection of poems in Spanish, Sampaguitas y poesias (Jasmines and Poems), published in Madrid in 1880.
He served as prime minister of the first Philippine republic in the middle of 1899, and served as head of the country's assembly, and the cabinet.
With the Philippine-American War after the signing of the Treaty of Paris in 1898, he was among the most prominent Filipinos who joined the American side and advocated the incorporation of the Philippines into the United States.
He died of cholera on March 11, 1911. His literary work was not appreciated until several decades after his death.