Santiago "Junjun" S. Cabatu, Jr. (born June 25, 1984 in Cagayan, Philippines) is a Filipino former professional basketball player. He played for the San Miguel Beermen in the Asean Basketball League till 2011. He is the son of Santiago "Sonny" Cabatu, Sr., who is a former PBA player and was the very first draft pick of the league in 1985. He played high school basketball at St. Vincent School of Quezon City along with his elder brother Christian Cabatu and some notable players like Percival Cendana and Christian Anlacan to name a few. They won the National Championship and represented Manila selection in the Palarong Pambansa 2000 where they finished 2nd place behind Cebu selection.