This is a list of articles about religion in both the Republic of Ireland and Northern Ireland.

• Religion in the Republic of Ireland
• Religion in Northern Ireland
• Irreligion in the Republic of Ireland
• Christianity in Ireland
  • History of Christianity in Ireland
  • Roman Catholicism in Ireland
  • Protestantism in Ireland
    • Reformation in Ireland
• Islam in Ireland
• Islam in Northern Ireland
• Hinduism in Ireland
  • Hinduism in the Republic of Ireland
  • Hinduism in Northern Ireland
• History of the Jews in Ireland
• History of the Jews in Northern Ireland
• Neo-paganism in the Republic of Ireland
• See Neopaganism in the United Kingdom for Neopaganism in Northern Ireland.