In the quinceañera tradition, what birthday marks the celebration?

A quinceañera traditionally celebrates a girl's 15th birthday.

The Spanish word quinceañera refers both to the celebrant and, commonly, to the birthday celebration itself. The milestone is viewed as a transition from childhood toward young womanhood, although families interpret that symbolism in different ways.

A typical celebration may include a religious service, a formal reception, special clothing, a court of attendants, music, dancing, and a large meal. Customs vary widely by country, region, religion, family, and budget, so no single program is universal.

The event is sometimes compared with a sweet sixteen party, but the age is different. Quinceañeras are especially associated with Latin American communities and their diasporas, including families in the United States. Some families celebrate a boy's 15th birthday with a quinceañero or quince años event, while others adapt the tradition in gender-inclusive ways.