Answer:
There are thousands of female saints and it would be impossible to name them all. Here are a few:
St. Agnes of Rome
St. Agatha
St. Lucy of Syracuse
St. Therese of Lisieux
St. Catherine of Alexandria
St. Teresa of Avila
St. Elizabeth Ann Seton
St. Frances Xavier Cabrini
St. Mary Magdaelene
St. Joanna
St. Maria Goretti