The Spanish masculine term traditionally used for a boy or young man celebrating a fifteenth birthday is quinceañero.
Quinceañera is the feminine form most familiar internationally because the tradition historically centered on a girl’s transition into a new social stage. Spanish grammar distinguishes the masculine quinceañero from the feminine quinceañera, although English-language descriptions sometimes use quinceañera as the name of the celebration itself.
Contemporary families have broadened the ways they mark the milestone. Some boys celebrate with an event called a quinceañero, while some families use inclusive or customized formats rather than following a gendered court and ceremony. The term should not be confused with debutante, an English and French-derived word for a young woman making a formal social appearance.