Diana Khristova Koleva-Tsvetanova (née Koleva, Bulgarian: Диана Колева; born 24 October 1959) is a former Bulgarian 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.