Look up Massilia in Wiktionary, the free dictionary.

Massilia is the Latin name of the ancient Greek city Massalia, now Marseille.

Massilia may also refer to:

• Massilia (bacterium), a genus of bacteria
• Massilia, a 2014 album by Massilia Sound System
• Massilians, Gaulish followers of Pelagius
  • Massilianism, an earlier name of Semi-Pelagianism
• SS Massilia, ship of the Compagnie de Navigation Sud-Atlantique