The traditional masculine Spanish term for a boy celebrating his 15th birthday is quinceañero.
Quinceañero is the masculine counterpart to quinceañera. Both words relate to the age of fifteen and can refer to the young person being honored. The masculine form is used for celebrations sometimes called a quince años for boys, although usage varies by country, family, and community.
Historically, the most widely recognized form of the tradition centered on girls. Contemporary families have broadened the format, creating celebrations for boys, mixed groups, and young people whose identities do not fit older gender conventions. The core idea is a significant 15th-birthday milestone.
The word should not be confused with quinceañista, which is not the standard name for the honoree. Spanish gendered endings can change the form of a noun, but local practice determines which label a family prefers.