Vidalia may refer to:

  • Vidalia (alga), a genus of red algae in the family Rhodomelaceae
  • Vidalia (fly), a genus of tephritid or fruit flies in the family Tephritidae
Places
Other
  • Vidalia onion, a sweet onion of certain varieties, grown in a production area defined by law in Georgia
  • Vidalia (software), a software program which is a cross-platform controller GUI for Tor, built using the Qt toolkit
  • "Vidalia" (song), a song recorded by Sammy Kershaw