Cristina Bontas (later Tantaru, born December 5, 1973) is a Romanian former artistic gymnast, who competed in international events between 1987 and 1993.
Her best events were the floor exercise, the vault, and the all around.
She is a world champion on floor, a double olympic medalist and a six-time world medalist.
Bontas scored a perfect ten on floor in the all around event of the 1989 World Artistic Gymnastics Championships.