Diana Khristova Koleva-Tsvetanova (née Koleva, ; born 24 October 1959) is a Bulgarian former badminton player. She competed in three consecutive Summer Olympics in 1992 Barcelona, 1996 Atlanta, and 2000 Sydney. Koleva won sixteen times the National Championships title from 1985 to 2003. She also won the women's singles title at the 1988/89 season of European Circuit.
The World Badminton Grand Prix has been sanctioned by the International Badminton Federation from 1983 to 2006.
Women's doubles
Women's singles
Women's doubles
Mixed doubles