Yes here are fillies who'd won TC Races, and the dates
Regret won the KY. Derby in 1915
Genuine Risk won the KY. Derby in 1980
Winning Colors won the KY. Derby in 1988
Flocarline won the Preakness in 1903
Whimsical won the Preakness in 1906
Rhine Maiden won the Preakness in 1915
Nellie Morse won the Preakness in 1924
Ruthless won the Belmont in 1867
Tanya won the Belmont in 1905
Rags To Riches won the Belmont in 2007
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There are many many horse race series worldwide called the Triple Crown. Multiple fillies have won some of them. Please ask again and specify the race series you refer to (including the full formal title of that series or the country it is based in).
No filly has ever won the Triple crown. There is however a series of triple crown races for fillies called the Triple Tiara. These races are held in New York and to date 7 fillies have won it.
There is a filly that won the Triple Crown but it is the Filly Triple Crown also known as the Triple Tiara. The horse name is Ruffian. This horse is the first filly to win the Triple Crown.