TheNameGarden.com, NameBerry.com and Catholic.org are online sources of confirmation names for girls. In Catholicism, confirmation is the second of the seven sacraments, strengthening and deepening baptismal grace. It is traditional that the confirmed take on a name of a patron saint.
TheNameGarden.com provides a list of both common and uncommon saint names as well as name origins, meanings and saint patronages. NameBerry.com provides a list of saint names for girls that includes the name meaning and origin, as well as a history of the name and its use by famous people. Catholic.org offers a list of saint names for girls along with the feast days, year of death and an extended biography for each saint.