Kathryn Campbell (born August 8, 1990) is a Canadian karateka. She won the silver medal in the women's kumite -55 kg event at the 2019 Pan American Games held in Lima, Peru. She also won the silver medal in this event at the 2015 Pan American Games held in Toronto, Canada. In both events Valéria Kumizaki of Brazil won the gold medal. She competed in the women's kumite 55 kg at the 2022 World Games held in Birmingham, United States.