From Arabic and Persian roots meaning "fortunate," "happy," or associated with the poet Saadi.
Sadi carries a dual heritage that makes it particularly rich for a name of only four letters. In the Western tradition, it functions as a streamlined variant of Sadie, itself a diminutive of Sarah — the Hebrew name meaning "princess" or "noblewoman" that appears in the book of Genesis as the wife of Abraham and one of the founding mothers of the Abrahamic traditions. Sadie emerged in the English-speaking world as an affectionate pet form and eventually gained standing as a given name in its own right during the Victorian era.
Yet Sadi also resonates with one of the great literary figures of the Persian world: the thirteenth-century poet Saadi Shirazi, born Muslih-ud-Din Mushrif ibn Abdullah. Writing from Shiraz in what is now Iran, Saadi produced the *Gulistan* (Rose Garden) and *Bustan* (Orchard) — works of such wisdom and lyric beauty that they influenced Persian literature, Mughal court culture, and even European Romantics like Goethe. His pen name, Saadi (also spelled Sadi), honored a patron and became so widely associated with his genius that the name carries a literary glow throughout the Persian-speaking world.
In contemporary usage, Sadi — stripped of the final "e" — feels modern and gender-inclusive, used for both boys and girls depending on cultural context. It is compact, confident, and cross-cultural, sitting at the intersection of Anglophone affection and Persianate literary prestige in a way few short names can manage.