Catherine Mary O'Donnell (born 13 June 1996) is an English rugby union player and model.

She represents England women's national rugby union team internationally and plays for Loughborough Lightning.

[1] She started in four of England's five 2019 Women's Six Nations Championships games as the country won the grand slam.

[1] After the 2019 season, O'Donnell discovered she had fractured her shins and was absent from international rugby until April 2021, when she returned for the 2021 Women's Six Nations Championship.

[2] She was named in the England squad for the delayed 2021 Rugby World Cup held in New Zealand in October and November 2022.