What kind of ceremony may traditionally accompany a quinceañera in Catholic families?

In Catholic families, a quinceañera may traditionally include a Catholic Mass.

This service is often described as a thanksgiving Mass, or a Misa de acción de gracias, in which the celebrant gives thanks for reaching fifteen and receives prayers or a blessing. The religious portion may occur before the party or reception.

The practice reflects the strong Catholic influence in many Latin American communities, but a Mass is not universal. Some families hold a nonreligious celebration, a church blessing, or no formal service at all.

A quinceañera is not a sacrament of the Catholic Church. It is a cultural and religious custom, unlike baptism, confirmation, or marriage. That distinction explains why the format can differ between parishes and countries.