Deja

Deja or Dejah may refer to:


 * Deja News, an archive of messages posted to Usenet discussion groups and its successor deja.com
 * Andreas Deja (born 1957), German animator
 * Dejah Mulipola (born 1998), American softball player
 * Dejah Thoris, a fictional character in Edgar Rice Burroughs' Martian novels
 * Deja, a village in Sălățig Commune, Sălaj County, Romania
 * Deja Monét Trimble, knowqn professionally as Dej Loaf, American rapper, singer and songwriter
 * Déjà, a 1980s R&B musical group that also recorded under the name Aurra
 * Deja, a 2021 album by Colombian band Bomba Estereo
 * Dagnum, a former settlement in Albania
 * DeJa Skye, American drag queen
 * Deja (given name)
 * Andreas Deja, Polish born German-American animator