Quinceañero is the traditional masculine term for a boy celebrating his fifteenth birthday in a quinceañera-style ceremony.
The word is the masculine counterpart of quinceañera and derives from the same Spanish reference to fifteen years. Although quinceañera celebrations for girls are far more widely documented and recognized, some families adapt the tradition for boys.
A quinceañero celebration may include formal clothing, a religious service, family speeches, music, dancing, and a court of attendants. There is no single required format, and practices vary among countries and families.
Quinceañero should not be confused with chambelán, which traditionally names a male attendant in a quinceañera court. Likewise, padrino refers to a sponsor or godparent-like supporter, not necessarily the birthday celebrant.