Catholicism is the religious denomination most traditionally associated with a quinceañera mass.
Many quinceañeras have historically included a Catholic thanksgiving service, reflecting the strong Catholic heritage of numerous Latin American communities. The service may take place before the reception and can include prayers, blessings, family participation, and presentation of the honoree.
The tradition is not exclusively Catholic. Families from other Christian denominations, other faiths, or no religious background may adapt the event or hold a secular celebration. Even within Catholic communities, a family may choose a blessing, a different service, or no formal religious ceremony.
A quinceañera therefore should not be assumed to indicate a person’s religion. It is a cultural tradition with religious forms in some settings, and its meaning and structure vary substantially across countries and families.