Jaci

Jaci is a feminine given name of Tupí-Guaraní origin, commonly interpreted as meaning "moon." In Tupi-Guarani mythology, Jaci is the Moon goddess who presides over the night and is often associated with beauty, calm, and cycles of nature. The name reflects the lunar symbolism present in many Indigenous Brazilian traditions.

In contemporary usage, Jaci is most commonly found among Brazilian and other Portuguese-speaking communities, though it has been adopted in various countries and among diverse populations. It can appear as a standalone given name or as part of longer names, and it carries cultural associations with lunar imagery and Indigenous heritage.

Notable people with the given name include Jaci Velasquez, an American contemporary Christian music singer and actress who gained prominence in the late 1990s and 2000s. Her public presence has helped bring attention to the name outside its original cultural context.

As a name, Jaci has also appeared in fiction and media to evoke a sense of mystique or cultural heritage tied to its Indigenous and lunar origins. While primarily used as a personal name, its mythological roots continue to shape its perception in literature and popular culture.