Atlantia

Atlantia may refer to:


 * Kingdom of Atlantia, a regional designation used within the Society for Creative Anachronism
 * Atlantia (company), an Italy-based toll road operator
 * Gaia III: Atlantia, an album by the band Mago de Oz
 * Atlantia (book), a 2014 young adult fantasy novel by Ally Condie
 * Atlantia, the third zone in the 2009 video game Henry Hatsworth and the Puzzling Adventure
 * Atlanteia or Atlantia, in Greek mythology was a Hamadryad nymph who consorted with Danaus