Science and medicine
*'' Apatura ilia'' or lesser purple emperor, a butterfly * Ilium (bone) (plural: "ilia"), pelvic bonePeople
* Ilia (name), numerous ** Ilia II, the current Catholicos-Patriarch of All GeorgiaPlaces
* Ilia, Hunedoara, Romania * Elis (regional unit), Greece *Arts and literature
*Ilia, a character in '' Idomeneo'', an opera by Mozart * Ilia (The Legend of Zelda), a character in the video game ''The Legend of Zelda: Twilight Princess'' * Ilia (''Star Trek''), a character in ''Star Trek: The Motion Picture'' *Ilia, a nation of the continent Elibe from the ''Fire Emblem'' series * Ilia the Righteous, a prominent figure of new Georgian literature * Rhea Silvia or Ilia, the mother of Romulus and Remus in Roman mythologyOther
* Illinois Institute of Art – Chicago, a nonprofit institution * Ilia (band), a rock band * Arturo Umberto Illia (1900–1983), former president of ArgentinaSee also
*