What is the Spanish masculine form of the word quinceañera?

The Spanish masculine form of the word quinceañera is quinceañero.

Quinceañera is the feminine Spanish noun associated with a girl celebrating her fifteenth birthday and the traditional coming-of-age event. Quinceañero uses the masculine ending -o and can refer to a boy who celebrates a comparable fifteenth-birthday milestone. The distinction follows a common grammatical pattern in Spanish, where related masculine and feminine nouns often have different endings.

English-language writing frequently uses quinceañera as the name of the entire tradition, even when describing broader or gender-inclusive celebrations. That usage reflects the tradition’s historical association with girls, but it does not eliminate the masculine term.

Quinceañero is different from chambelán, which identifies a male attendant in the court, and from padrino, which identifies a sponsor or godfather. Those words describe roles around the celebration rather than the celebrant himself.