Camilo Olaviano Osías, Sr. (born Camilo Osías y Olaviano; March 23, 1889 – May 20, 1976) was a Filipino politician, twice for a short time President of the Senate of the Philippines. Along with a certain American named Mary A. Lane, Osías translated into English the poem Filipinas that was set to the Marcha Nacional Filipina, producing the Philippine Hymn that is now the national anthem, Lupang Hinirang.