What is the Spanish name for the formal religious thanksgiving Mass sometimes held for a quinceañera?

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

The Spanish phrase literally means “Mass of thanksgiving.” In Catholic families, this service may take place before the reception and gives the celebrant an opportunity to express gratitude for life, family, and faith. The quinceañera may enter formally, wear her dress, receive a blessing, and participate with parents, sponsors, and attendants.

This religious element is common but not universal. Quinceañeras are also celebrated by families from other Christian traditions, by secular families, and by people who choose a party without a church service. Local parishes may set their own preparation requirements, readings, music rules, and scheduling practices.

A misa de acción de gracias is not the same as a wedding Mass, baptism, or Christmas Mass. Its purpose is connected to the young person’s birthday and transition. Customs differ significantly between countries, churches, and families, so no single order of service applies to every quinceañera.