Karen Roberts (born 26 October 1976) is a British former judoka, who competed in the 2000 Summer Olympics.
Roberts won the bronze medal at the 1999 World Judo Championships in Birmingham, in the -63 kg category. In 2000, she was selected to represent Great Britain at the 2000 Summer Olympics in Sydney. Competing in the women's 63 kg category she reached the quarter finals.
In 2002, she had a triple success, winning the gold medal at the 2002 Commonwealth Games in Manchester, securing a silver medal at the 2002 European Judo Championships in Maribor and becoming champion of Great Britain, winning the half-middleweight division at the British Judo Championships. The following year in 2003, she successfully defended her British title.