A nickname-style form related to Bronson or Bronwyn, used mainly for its friendly modern sound.
Bronny is a name that exists in two overlapping traditions. As a feminine name it functions as a diminutive of the Welsh Bronwen (sometimes spelled Branwen), one of the most poignant figures in the Mabinogion, the great collection of medieval Welsh mythology. Bronwen means "white breast" or "fair breast" in Welsh — bron (breast, in the topographic and symbolic sense of a hillside or chest) plus wen/gwen (white, fair, blessed).
In the Second Branch of the Mabinogi, Bronwen is a princess of Britain married to the King of Ireland; her story of separation, suffering, and death by heartbreak is one of the most emotionally devastating in Celtic literature. The name carries that depth of feeling beneath its diminutive softness. In contemporary culture, Bronny gained enormous visibility through Bronny James, the son of basketball superstar LeBron James, who was nicknamed Bronny as a diminutive of his given name LeBron Jr.
When Bronny was drafted into the NBA in 2024, he and his father became the first father-son duo to play simultaneously in the league — a historic moment that gave the name a new association with legacy, athleticism, and intergenerational ambition. For families today, Bronny carries both the ancient Celtic undertone of the Welsh tradition and the thoroughly contemporary resonance of that sports story, making it a name poised between deep roots and fresh meaning.