The Spanish dance traditionally associated with the formal quinceañera waltz is called vals.
Vals is the Spanish word for “waltz,” a partnered dance in triple meter that became part of many formal quinceañera celebrations. The celebrant may dance with a parent, escort, or members of the court of honor, and the routine may be carefully rehearsed before the event.
The waltz gives the celebration a formal presentation similar to other milestone ceremonies. In contemporary quinceañeras, it may be followed by a surprise dance or a more modern performance, reflecting the family’s musical tastes and the celebrant’s personality.
A vals is traditional, not mandatory. Music and choreography vary widely across countries and generations. The presence of a waltz also does not turn the event into a wedding: the quinceañera remains a fifteenth-birthday coming-of-age celebration.