Bianca Knight is a track and field athlete who has competed for the United States.
She competed at the 2012 Summer Olympic Games. She ran as part of the American team in the 4x100 metres relay in London in 2012, taking part in the third leg of the first heat, following Jeneba Tarmoh and preceding Lauryn Williams. The team finished first in the heat with a new season's best time of 41.64 and advanced to the final. In the race for the medals, she once again competed in the third leg, now taking the baton from Allyson Felix, and with Carmelita Jeter going after her, the team broke a world record from 1985 by over half a second in a time of 40.82 to take the gold medal.