Cristiane Justino Venâncio (born July 9, 1985), known professionally as Cris Cyborg and formerly by her married name Cristiane Santos, is a Brazilian-American professional mixed martial artist and professional boxer who competes in Bellator MMA, where she is the current Bellator Women's Featherweight Champion having held the title since January 2020, and the inaugural PFL Super Fights Women's Featherweight Champion. She is also a former UFC, Strikeforce and Invicta FC World Featherweight Champion. She is the only MMA fighter in history to become a Grand Slam Champion, holding world championships across five major MMA promotions. Cyborg is widely regarded as one of the greatest female mixed martial artists of all time.
Cyborg first rose to prominence when she won the Strikeforce title on August 15, 2009, by defeating Gina Carano via first-round technical knock-out (TKO) in the first ever major main event to feature women.