Krista Maria Stegall (born July 24, 1972)  was a contestant on season 2 of Big Brother US, where she placed sixth. During her time on the show, she was threatened and attacked by fellow houseguest, Justin Sebik - where he held a knife to her throat and asked to kill her. Sebik was removed from the show later that night.

Following the end of the show, Stegall filed a lawsuit against CBS for negligence in not interferring and not providing counseling after the incident.