What is the common English name for the girl celebrating a quinceañera?

The girl celebrating the event is commonly called the quinceañera.

In Spanish, quinceañera can refer to the fifteen-year-old celebrant as well as the celebration itself. English-language writing also uses the Spanish term, especially when discussing the cultural tradition. The masculine counterpart, quinceañero, is used in some communities for a boy celebrating a similar milestone, although usage and customs vary.

The term is related to quince años, “fifteen years,” which identifies the birthday at the center of the tradition. In many families, the quinceañera is formally presented to relatives and guests during a ceremony or reception. Her court, parents, and other sponsors may have assigned roles around that presentation.

The word should not be treated as a personal name or title of nobility. It simply identifies the young woman associated with the fifteenth-birthday celebration. Because the event is practiced differently across countries and families, the celebrant’s role can be religious, cultural, social, or a combination of all three.