Quinceañero is a common name for the male counterpart to a quinceañera celebration.
The word uses the masculine Spanish ending -ero instead of the feminine -era. It can describe a boy celebrating his fifteenth birthday or the celebration itself, depending on context and regional usage. Some families also use quince años for any fifteenth-birthday celebration.
Quinceañero celebrations are less standardized and less widespread than the traditional quinceañera format. A family may include formal clothing, a church service, a court, speeches, dancing, or a reception, but there is no single universal program. In some places, boys participate in quinceañeras as chambelanes rather than having a separate celebration.
Usage changes over time as families adapt traditions. The term should therefore be treated as a common counterpart, not as evidence that every Spanish-speaking community follows one fixed male ritual.