What is the traditional quinceañera ceremony of giving thanks to God called in Spanish?

A traditional quinceañera thanksgiving Mass is called a Misa de Acción de Gracias.

The phrase translates as “Mass of Thanksgiving.” In Catholic families, this service may be held before the reception and gives the honoree an opportunity to express gratitude, receive a blessing, and be surrounded by family and community.

The religious service is not universal. Some quinceañeras are secular, and practices differ among Catholic parishes and across countries. A family may choose a church service, a civil ceremony, or a celebration without a formal ritual.

The Mass should not be confused with a wedding. Although both may involve a church, formal clothing, attendants, and music, a quinceañera is a coming-of-age birthday celebration rather than a marriage sacrament.