Giulia Casoni (Italian pronunciation: ['d?u?lja ka'zo?ni]; born 19 April 1978 in Ferrara) is a retired Italian tennis player.As a junior player, she won 1996 French Open in doubles, while her best professional results include singles quarterfinals at Internazionali Femminili di Palermo in 1999 and Tier I Italian Open in 2000, and three WTA Tour doubles titles.
A member of Italy Fed Cup team from 2000 to 2001.
She has won 3 in doubles WTA titles.
Casoni defeated players such as Dominique Monami, Katarina Srebotnik, Mariya Koryttseva, Francesca Schiavone, Émilie Loit and Nuria Llagostera Vives.
She has won 4 singles and 27 in doubles ITF Circuit titles.
Casoni retired from professional tennis in 2006, after struggling with a knee injury.