What is the usual Spanish term for a boy’s fifteenth-birthday celebration?

The usual Spanish term for a boy’s fifteenth-birthday celebration is quinceañero.

Quinceañero is the masculine counterpart to quinceañera. Both words derive from quince años, meaning “fifteen years,” and can identify the young person associated with the milestone. In English-language usage, quinceañera is much more widely recognized because the tradition has historically centered on girls.

The customs attached to a quinceañero are not identical everywhere. Some families organize a formal party with a suit, attendants, music, and a ceremonial program; others use the term simply for a boy turning 15. Regional vocabulary and family practice therefore matter when describing the event.

Quinceañero should not be confused with unrelated Spanish terms for religious ceremonies or family relationships. A baptism is a bautizo, and a compadrazgo describes a ritual kinship relationship. The word’s defining clue is the age-based quince años milestone, not a particular dance, garment, or church service.