Quinceañero is the Spanish masculine term sometimes used for a boy celebrating his fifteenth birthday.
The feminine form, quinceañera, is far more commonly associated with the traditional celebration. Historically, quinceañera customs have focused on girls, but families and communities have adapted the format for boys and for broader gender-inclusive celebrations.
The masculine noun follows a familiar Spanish pattern: quinceañero identifies a male person associated with turning fifteen, while quinceañera identifies a female person. Usage differs by country, family, and language community, so not every boy’s celebration is called a quinceañero.
A quinceañero event may borrow elements from the better-known tradition, including formal attire, a court, dancing, a religious service, or a reception. The term should not be confused with chambelán, which generally identifies an attendant rather than the person whose birthday is being celebrated.