What Spanish phrase describes the religious thanksgiving Mass often held for a quinceañera?

The religious thanksgiving Mass often held for a quinceañera is called a misa de acción de gracias.

The Spanish phrase literally means “Mass of thanksgiving.” In Catholic families, this service gives the celebrant an opportunity to express gratitude for her life and ask for guidance as she enters a new stage. It is commonly held before the reception, although arrangements differ.

The service may include readings, prayers, a blessing, and participation by parents, godparents, or the court. Some families also present symbolic items such as a Bible, rosary, or flowers, depending on local and parish practice.

A quinceañera is not automatically a Catholic sacrament. Families from other faiths may use a different blessing, and secular celebrations may have no religious service at all. The phrase therefore identifies a common Catholic component, not a universal requirement.