Gregorian

Gregorian might refer to:

• The thought or ideology of Pope Gregory I or Pope Gregory VII (also called Gregorianism)
• Things named for Pope Gregory I:
  • Gregorian chant
  • Gregorian mass
  • Brotherhood of Saint Gregory
  • Gregorian calendar
• The Gregorian reform (Pope Gregory VII)
• Things named for Pope Gregory XIII:
  • Gregorian calendar
  • Pontifical Gregorian University, Rome
• The Armenian Apostolic Church, sometimes called the Gregorian Church after Saint Gregory the Illuminator
• The Gregorian telescope, named after James Gregory
• Gregorian Bivolaru, founder of the Movement for Spiritual Integration into the Absolute (MISA)
• Gregorian (band), German band that performs Gregorian chant-inspired versions of modern pop and rock songs
• Gregorian Satellite Dish Antennas