The traditional waltz performed at a quinceañera is called a vals.
“Vals” is the Spanish word for “waltz,” a partnered dance in triple meter that became associated with formal European-style celebrations. In a quinceañera, the celebrant may dance with members of her court or family after an entrance or other formal presentation.
The dance is often choreographed and rehearsed in advance, especially when several attendants participate. However, the exact routine differs widely. Some families retain a conventional waltz, while others add contemporary music or combine the vals with popular Latin dance styles.
A vals is not the same thing as salsa, merengue, or cumbia. Those are distinct dance and music traditions. The presence of a choreographed dance also does not make every quinceañera identical; regional customs and individual family choices shape the program.