Jacob Rauluni (born 25 June 1972) is a former International Rugby Union player who comes from a family of international halfbacks. His father, Taito, played halfback for Fiji, as did his brother Mosese and his first cousin Waisale Serevi, who also started his career at halfback. Rauluni played for the Queensland Reds from 1995 to 2002 and he played for Fiji from 1995 to 2006. He had an extended spell playing rugby in the UK, and is best known for helping Rotherham Titans win promotion to the Premiership. In 2006 he played three tests for The Barbarians. He retired from international rugby in 2007, having played 52 tests. He played his last test against Japan as Captain of the Fiji national team.