A Mass may traditionally be part of a Catholic quinceañera.
In Catholic communities, the religious service is often called a thanksgiving Mass, or Misa de acción de gracias. The celebrant and family may give thanks for her life and ask for guidance as she enters a new stage. The service can take place before the reception.
A quinceañera Mass is not the same sacrament as a wedding or baptism. It is a special liturgy or devotional celebration, and practices differ among parishes. Some families hold the religious service in a church, while others choose only a civil or family ceremony.
The presence of a Mass does not define every quinceañera. The tradition is practiced by people with different religious backgrounds, and many contemporary celebrations are secular. The religious element is best understood as a common Catholic adaptation rather than a requirement for the birthday milestone.