Camilo Niranjana (Balaoan, 23 March 1889 – Manila, May 20, 1976) was a Filipino politician and writer. Osias was Filipino delegate in the American House of representatives, delegate of the Philippine Assembly and three terms a member of the Philippine Senate. In his second term as senator for a short period he was twice President of the Senate.
Osias was born in Balaoan , La Unionprovince, his parents were Manuel Osias and Gregoria Olaviano. After his primary and secondary education in Balaoan, Vigan and San Fernando, he moved in 1905 with a grant from the Government for his studies of the United States. In 1908 he obtained his degree at Western Illinois State Teachers College in Macomb and in 1910 he graduated as a lecturer at Columbia University in New York City.
Upon his return to the Philippines, he started working as a teacher. Later, he was from 1915 to 1916 the first Filipino Superintendent of Schools. From 1917 to 1921 he was Assistant Director of education. He also took part in the first from 1919 to 1920 Philippine independence mission to the United States and he was from 1919 to 1921 lecturer at the University of the Philippines. Then was president of the National University from 1921 to 1936.
His political career began with his election to the Philippine Senate in 1925. In 1928 he was elected as Filipino delegate in the American House of representatives, a position in which he was constantly lobbying for more Philippine independence. His term in the United States began on 4 March 1929 and lasted until January 3, 1935. In 1934 he did without success the contest to the Philippine Senate. Though he was one of the delegates at the Constitutional Convention for the new Philippine Constitution of 1935. He was also chosen for a term of three years as a Deputy in the National Assembly on behalf of the province of La Union. In 1939 he was a member of the economic mission of the Philippines to the United States and he was also President of education missions in 1938 and 1941.Back in his homeland in 1941, he was President of the National Council of Education and he was Director of publicity and propaganda until 1942. He was also Chairman of the National Cooperative Administration in 1941 and later Assistant Commissioner of the Ministry of education, health and Public Welfare. Subsequently he was Minister of Education until 1945.
In 1947 he was elected senator again, this time for Osias a six-year term. At the end of this period was in 1952 and in 1953 twice for a short time President of the Philippine Senate. In 1953 he took on the Party Convention of the Nacionalista Party in the battle for the nomination as presidential candidate Ramon Magsaysayon against. He lost the nomination and Magsaysay was eventually elected president of the Philippines.Afterwards he switched to the Liberal Party. At the Philippine elections of 1961 on behalf of that party, he won a new six-year term in the Senate.
In addition to his work as a teacher and his political career was Osias also writer. He produced many books including, Philippine Readers, The Filipino Way of Life and Rizal: His Life and Times.
Osias died in 1976 at the age of 87 in Manila.