Danni is a diminutive of Danielle or Daniel, from Hebrew, meaning "God is my judge."
Danni is a warm, informal diminutive of either Daniel or Danielle, both of which trace to the Hebrew Dani'el — a compound of din (to judge) and El (God), meaning 'God is my judge.' It is one of the most theologically resonant meanings in the Hebrew naming tradition, expressing not a claim of divine favor but a trust that ultimate judgment belongs to the divine rather than to human opinion. The biblical Daniel — the prophet who survived the lions' den and interpreted Nebuchadnezzar's dreams — made the name famous across Jewish, Christian, and Islamic traditions alike.
As a feminine form, Danni (alongside Dani, Dannie, and Dany) emerged as Danielle gained ground in France and then the English-speaking world through the twentieth century. French Danielle was fashionable from the 1930s onward, and its diminutives followed naturally. In Australia and the UK, Danni has had notable cultural visibility — Australian pop singer Dannii Minogue, sister of Kylie, brought the double-i spelling into wide public consciousness during the 1990s and 2000s.
The spelling with double-i gives Danni a playful visual signature, distinguishing it from the more neutral Dani while keeping its casual energy intact. Today Danni works equally as a standalone name and as a nickname, gender-flexible in the way that short J- and D-names often are. It carries its biblical gravity lightly, projecting warmth and approachability while remaining tethered, for those who care to look, to one of antiquity's most dramatic stories of faith under pressure.