Gemini is a Latin zodiac name meaning "twins," associated with the constellation and astrological sign.
Gemini comes directly from the Latin word for "twins," itself derived from *geminus*, meaning "twin" or "double." In Roman mythology, Gemini represented Castor and Pollux, the divine twins born from the union of Zeus and Leda — one mortal, one immortal, so devoted to each other that when Castor died, Pollux begged Zeus to let him share his immortality, and the two were placed together among the stars as the brightest points of the constellation bearing their name. The myth is one of antiquity's great stories of loyalty, making Gemini a name that carries at its core the idea that the deepest bonds transcend even death.
As a zodiac sign ruling those born between late May and late June, Gemini has accumulated centuries of astrological association: wit, curiosity, adaptability, duality, and a gift for communication. The list of historical Geminis spans Marilyn Monroe, John F. Kennedy, Bob Dylan, Anne Frank, and Kanye West — a grouping so wildly varied that it perhaps proves the sign's defining characteristic of containing multitudes.
This astrological dimension gives the name a particular mystique, suggesting someone born under an expansive, restless sky. As a given name, Gemini has historically been rare but never invisible, surfacing most often when parents want to honor twins or when a child is born under the sign. In recent decades it has gained traction as part of the broader movement toward constellation and celestial names — Luna, Orion, Lyra — that reflect a generation's fascination with the cosmos.
NASA's Gemini program, the series of crewed spaceflights that bridged Mercury and Apollo, also gave the word a powerful mid-century association with human daring and exploration. The name asks to be worn with a certain intellectual confidence, as if carrying within it the awareness that every person contains more than one self.