Sixto Orosa

Sixto Ylagan Orosa Sr. (August 6, 1891 – April 21, 1981) was a Filipino physician and writer.

Background
Orosa was born in Taal. He was the brother of María Orosa.

Books
Books written by Orosa, includes:
 * The Sulu Archipelago and Its People, World Book Company, 1931
 * Through Three Generations, 1976
 * Jose Rizal: Man and Hero,
 * Si Jose Rizal: ang pambansang bayaning Pilipino, S.Y. Orosa, 1958