What type of dance is the formal quinceañera vals based on?

The formal quinceañera vals is based on the waltz.

A vals is a choreographed dance performed by the quinceañera with members of her Court of Honor. The name vals is Spanish for “waltz,” and the dance traditionally uses the waltz’s flowing, turning character, although modern routines may combine several styles.

The court may rehearse for weeks or months. The routine can begin with a formal entrance and then develop into a sequence designed for the chosen music, costumes, and venue. Some families prefer a simple traditional waltz, while others add contemporary choreography.

The vals should not be confused with the entire celebration. It is one performance within a quinceañera, alongside possible religious observances, symbolic gifts, dinner, speeches, and other dances.