Sarmiento Jr., also known as Ditto Sarmiento (June 5, 1950 – November 11, 1977) was a Filipino student journalist who gained prominence as an early and visible critic of the martial law government of President Ferdinand Marcos.
As editor-in-chief of the Philippine Collegian, Sarmiento melded the University of the Philippines student newspaper into an independent though solitary voice against martial law rule at a time when the mass media was under the control of the Marcos government.
His subsequent seven-month imprisonment by the military impaired his health and contributed to his premature death.