This is all the major religious groups.

Christianity

• Christianity
  • Catholic
  • Protestant
  • Eastern Orthodox
  • Coptic

Islam

• Islam
  • Sunni
  • Shia
  • Sufi
  • Ahmadiyya
  • Ibadi

Judaism

• Judaism
  • Orthodox Judaism
  • Conservative Judaism
  • Reform Judaism
• Ashkenazi Jews - The main group of Jews

Hinduism

• Hinduism

Buddhism

• Buddhism
  • Theravada
  • Mahayana
  • Vajrayana

Jainism

Sikhism

Zoroastrianism

Oriental

• Confucianism
• Shinto
• Taoism

Unitarian religions

• Bahai
• Unitarian Universalism
• Unification Church
• Deism
• Pantheism
• New Age
• Rastafari movement