Jacobo Sybico Amatong (October 11, 1936 – September 24, 1984) was a Filipino lawyer, politician, and newspaper publisher from the province of Zamboanga del Norte. He was best known for founding the Mindanao Observer, a community newspaper which became well-known for criticizing the martial law administration of Ferdinand Marcos, and for being assassinated by uniformed soldiers on September 24, 1984. Amatong is honored by having his name etched on the wall of remembrance at the Philippines' Bantayog ng mga Bayani, which honors the heroes and martyrs who fought the authoritarian regime.