The Spanish masculine term for a boy celebrating his fifteenth birthday in a quinceañera-style celebration is quinceañero.
The word parallels quinceañera, the feminine term traditionally used for the celebration and for the girl being honored. Both words derive from quince años, meaning “fifteen years.” In English-language coverage, quinceañera is often used broadly for the event, even when the celebrant is male.
A quinceañero celebration may include several familiar elements, such as formal clothing, a court, dancing, family speeches, and a large reception. Customs vary substantially by family, country, religion, and community, so a quinceañero does not necessarily follow every traditional quinceañera ritual.
The term should not be confused with chambelán, which refers to a male attendant or escort in the court rather than the birthday celebrant. Likewise, quinceañero describes the person being honored, not the dance or the party itself.