A quinceañera traditionally celebrates a 15th birthday in Latin American and Latino communities.
The milestone is marked by a special celebration that may combine family gathering, formal clothing, music, dancing, and—especially in Catholic families—a thanksgiving Mass. The event is often described as a coming-of-age tradition, although its meaning is not identical across all communities or generations.
The celebration does not create a legal adult. Legal adulthood remains determined by the laws of the country where the celebrant lives. The tradition is also not limited to one single national format: customs differ across Mexico, Central America, South America, the Caribbean, the United States, and diaspora communities.
Some families choose a large formal event, while others hold a small dinner, religious service, or contemporary party. Boys may also have celebrations connected with the fifteenth birthday, and terminology varies. These variations do not change the central milestone represented by the traditional quinceañera: the celebrant’s fifteenth birthday.