The Spanish term commonly used for a boy celebrating his fifteenth birthday is quinceañero.
Quinceañero is the masculine counterpart of quinceañera. Both words are built from quince, “fifteen,” and refer to a fifteenth-birthday coming-of-age celebration or its honoree, depending on context.
The traditional quinceañera custom developed around girls, so quinceañera remains much more widely recognized. Some families and communities adapt the celebration for boys, using quinceañero or organizing a similar fifteenth-birthday event with formal clothing, attendants, dancing, and family rituals.
Usage is not identical everywhere. Families may choose different names, ceremonies, or formats, and not every fifteenth birthday includes a formal coming-of-age celebration. Quinceañero is therefore the standard masculine term, not a claim that all communities observe an identical male ceremony.