Diana Iuliana Mocanu (born 19 July 1984 in Brăila) is a Romanian former Olympic and national record holding swimmer. She swam at the 2000 Olympics, where she won in the 100 and 200 backstrokes, both in Romanian records. She also won in the 200 meter backstroke at the 2001 World Aquatics Championships.
In 2015, she was inducted into the International Swimming Hall of Fame.[1]