Cate Campbell, OAM, is an Australian competitive swimmer, and a current multiple world record holder, who won two bronze medals at the 2008 Summer Olympics, a gold medal at the 2012 Summer Olympics and a gold and a silver medal at the 2016 Summer Olympics. She is the current world record holder in the Long Course 4 x 100 m Freestyle Relay with Team Australia and the short course 100 m freestyle. Cate is her full name, not a nickname.
A famous bearer of the name Cate is Cate Blanchett (born May 14, 1969 as Catherine Elise Blanchett.) She won the Oscar for Best Supporting Actress for being Katharine Hepburn in the popular award-winning movie, "The Aviator."