What Spanish term commonly names the quinceañera’s formal birthday dress?

The formal birthday dress is commonly called a vestido de quinceañera.

The phrase means “quinceañera dress” and refers to the elaborate gown worn by the honoree at the ceremony or reception. It is often designed to look distinctive from the dresses worn by attendants and may include a full skirt, decorative embroidery, beading, or a coordinated color scheme.

The gown’s style is not fixed. Some families choose a traditional ball gown, while others select a shorter, modern, minimalist, or culturally specific design. White, pink, and pastel colors are common in popular imagery, but no single color is required.

A quinceañera dress is sometimes compared with a bridal gown because of its formal appearance. It does not, however, signify marriage. The celebration marks a birthday and a family-recognized transition into a new stage of life.