Bernadette Coston (born 17 August 1989, Johannesburg) is a South African field hockey player. At the 2012 Summer Olympics she competed with the South Africa women's national field hockey team in the women's tournament. She was also part of the South African women's team at the 2014 Commonwealth Games. She completed her Master’s degree in Chiropractic and graduated from the University of Johannesburg in 2016.