The male attendants who traditionally accompany a quinceañera are called chambelanes.
A chambelán is commonly part of the quinceañera’s court of honor, the group that participates in formal dances and ceremonial moments. The word is related to the Spanish term for a chamberlain or court attendant, reflecting the courtly presentation associated with the celebration.
A quinceañera’s attendants may also include damas, who are young women in the court. The exact size and composition of the court vary by family, country, and budget, so not every celebration has the same number of chambelanes.
Padrinos are different: they are sponsors or supporters, often adults who help provide items or services for the event. Mariachis are musicians, not attendants. In some communities, English terms such as escorts or honor attendants are also used, but chambelanes is the established Spanish label.