Quinceañero is the Spanish term commonly used for a boy celebrating his fifteenth birthday in a quinceañera-style tradition.
The word is the masculine counterpart of quinceañera, which traditionally refers to a girl reaching fifteen. A quinceañero celebration may follow many of the same patterns, including formal clothing, a court of honor, a religious service, music, dancing, and a large family reception.
Usage is not identical everywhere. In some communities, quinceañera remains the familiar name for the entire tradition even when the celebrant is male. Families may also adapt the ceremony to emphasize the individual’s personality rather than follow a fixed gendered script.
The broader tradition is associated with Latin America, Spain-influenced Catholic culture, and Latino communities in the United States. Its details differ by country and family, so the presence of a court, Mass, special dance, or symbolic presentation is not universal.