Unknown; likely a literary invention or variant of June.
The name's exact etymology is uncertain, though it is most famously associated with the American writer Djuna Barnes. It is often speculated to be a creative variant of the name June or Oonagh, or possibly derived from the Russian name Dunya. It remains a rare, artistic choice in the United States.
Less common today
Djuna isn't in the latest US Top 1000. It last peaked at #10,284 in 2014.
Modernist American writer and artist
The young protagonist and detective's assistant Β· Ellery Queen, Jr. mystery novels
US births per 5-year period, 1990βpresent (SSA data).