On what birthday is a quinceañera traditionally held?

A quinceañera is traditionally held on a girl’s 15th birthday.

The Spanish word quinceañera refers both to the celebrant and, commonly, to the celebration marking her transition from childhood toward young womanhood. The custom is especially associated with Latin American communities and with families of Latin American heritage in the United States.

The celebration often combines a religious service, a formal reception, music, dancing, symbolic gifts, and a specially staged entrance. Customs differ greatly by country, region, religion, family, and budget, so there is no single universal ceremony.

A quinceañera is sometimes compared with a sweet sixteen, but the two traditions are historically distinct. The defining age in the quinceañera tradition is fifteen, while particular rituals—such as a court of honor or a formal dance—may be adopted, omitted, or changed.