Jack Grant (born 24 January 1994 in Australia) is an Australian rugby union player who plays for the Waratahs in Super Rugby. His playing position is scrum-half. He was named in the Waratahs squad for the 2021 Super Rugby AU season. He previously represented the Sydney Rays in the 2017 National Rugby Championship, NSW Country Eagles in the 2018 and 2019 National Rugby Championships and NTT Red Hurricanes in the 2019–20 Top League.