Daniele Matias Hypólito (born September 8, 1984) is a Brazilian gymnast who competed in the 2000, 2004, 2008, 2012 and 2016 Olympic Games. Hypólito was the first athlete from Brazil ever to win a medal at the World Championships, a silver on floor exercise in 2001. She is also the nine-time senior all-around Brazilian National Champion in artistic gymnastics, 2002 South American Games all-around champion and 2003 Pan American Games all-around bronze medalist. To date Hypólito has won the Brazilian National Championships more than ten times; has represented Brazil at the World Championships thirteen times, competing in every Worlds meet from 1999 to 2015, except in 2009; has taken part in every edition of the Olympic Games from 2000 to 2016; and has competed at five Pan American Games between 1999 and 2015.
Hypólito was born in Santo André, São Paulo to parents Wagner and Geni. Her younger brother, Diego, is also a world-class gymnast. In 2001 she became the first Brazilian gymnast to win a World Championships medal, earning silver on the floor exercise.
Training in Rio de Janeiro, Hypólito was competing internationally by the time she was 10 years old. As a junior, she won the all-around in the Junior Pan Am Games in 1998 and the Canberra Cup in 1999. Hypólito placed a modest 27th in the all-around at the 1999 World Gymnastics Championships, but helped Brazil qualify athletes to the 2000 Olympics in Sydney. She was chosen to represent Brazil at the Olympics and qualified for the all-around final, finishing in 20th place.