Encyclopedias, Almanacs, Transcripts, and Maps
- Inber, Vera Mikhailovna
- Inca Religion
- Incarnate Word and Blessed Sacrament, Congregation of
- Incarnate Word, Sisters of Charity of the
- Incarnation, Necessity of the
- Incense and Perfumes
- Incest
- Incest
- Incest (in the Bible)
- Inclination, Good and Evil
- Incommunicability
- Incorporation in Christ
- Incorporation into the Church (Membership)
- Inculturation, Liturgical
- Inculturation, Theology of
- Indefectibility
- Independence Day, Israel
- Independent and Old Catholic Churches
- Independent and Old Catholic Churches
- Independent Fundamentalist Family