Lieutenant General Jack Farj Rafael Jacob, PVSM (2 May 1921 – 13 January 2016), was a general officer in the Indian Army. He was best known for the role he played in the Bangladesh Liberation War of 1971. Jacob, then a major general, served as the chief of staff of the Indian Army's Eastern Command. During his 36-year long career in the army, Jacob fought in World War II and the Indo-Pakistani War of 1965. He later served as the governor of the Indian states of Goa and Punjab.