Possibly a variant of Deja, meaning 'already'
The exact etymology of Diaja is uncertain, but it is widely considered a modern American phonetic variant of the French word 'déjà'. It may also be used as a creative elaboration of the name Deja or influenced by names like Raja or Daija. Due to its rarity, it is often chosen for its unique sound and contemporary feel.
Fewer than 5 girls were named Diaja in 2025.
US births per 5-year period, 1990–present (SSA data).