Gallican may refer to:

• Gallican Church (French: Église gallicane), a term referring to the Catholic Church in France
• Église gallicane, a Catholic denomination founded in 1869 by Hyacinthe Loyson
• Gallicanism, a doctrince that civil authority over the Catholic Church is comparable to that of the Pope
• Gallican Psalter or Psalterium Gallicanum, one of Jerome's Latin translations of the book pf Psalms
• Gallican Rite, a 1st-millennium Christian liturgy and other ritual practices in Western Christianity
  • Gallican chant, the liturgical plainchant repertory of the Gallican rite
• Gallican, a largely obsolete synonym of Gallic, referring to:
  • France, a country in Western Europe
    • French people, the majority demographic group of France
    • French language, the majority language of France
• Gallican, a largely obsolete synonym of Gaulish, referring to:
  • Gaul, ancient nation encompassing modern-day France and parts of surrounding countries
    • Gauls, the principal people of Gaul
    • Gaulish language, spoken by the Gauls
    • Roman Gaul, provincial rule of Gaul within the Roman Empire, 1st century BCE to 5th century CE