Mariano Marcos y Rubio was a Filipino lawyer, educator, and politician born in Batac, Ilocos Norte. He served as a Congressman from 1925 to 1931.
He is primarily recognized for his lineage within the Philippine political landscape. He was the father of Ferdinand Marcos, who served as president of the Philippines from 1965 to 1986, and the grandfather of the current president, Bongbong Marcos.