Diocese of Ibagué

St. Ibar

Diocese of Ibarra

Ibas

Pierre Le Moyne, Sieur d'Iberville

Ibora

Iceland

Iconium

Iconoclasm

Christian Iconography

Iconostasis

Idaho

Idea

Idealism

Idiota

Idolatry

Idumea

Diocese of Iglesias

José Iglesias de la Casa

Bl. Ignacio de Azevedo

St. Ignatius Loyola

St. Ignatius of Antioch

St. Ignatius of Constantinople

Ignorance

IHS

IHS

Ildephonsus

Illegitimacy

Illinois

Illinois Indians

St. Illtyd

Illuminati

Illuminati (Alumbrados)

Illyria

Veneration of Images

Imagination

Carlo Giuseppe Imbonati

Maximus von Imhof

Imitation of Christ

Immaculate Conception

Congregation of the Immaculate Conception

Immanence

Immortality

Immunity

Diocese of Imola

Innocenzo di Pietro Francucci da Imola

Impanation

Canonical Impediments

Imposition of Hands

Impostors

Improperia

Incardination and Excardination

Sisters of Charity of the Incarnate Word

Order of the Incarnate Word and Blessed Sacrament

The Incarnation

Incense

Incest

Elizabeth Inchbald

In Cœna Domini

In Commendam

Civil Incorporation of Church Property

Index of Prohibited Books

India

Indiana

Diocese of Indianapolis

Bureau of Catholic Indian Missions

American Indians

Patriarchate of the East Indies

Religious Indifferentism

Individualism

Individual, Individuality

Indo-China

Induction

Indulgences

Apostolic Indulgences

Pontifical Indult

St. Ine

Infallibility

Infamy

Infanticide

Stefano Infessura

Infidels

Infinity

Infralapsarians

Jan Ingen-Housz

Giovanni Inghirami

Ven. Francis Ingleby

University of Ingolstadt

Ven. John Ingram

Jean-Auguste Dominique Ingres

Ingulf

Richard of Ingworth

Injustice

Pope Innocent I

Pope Innocent II

Pope Innocent III

Pope Innocent IV

Pope Bl. Innocent V

Pope Innocent VI

Pope Innocent VII

Pope Innocent VIII

Pope Innocent IX

Pope Innocent X

Pope Innocent XI

Pope Innocent XII

Pope Innocent XIII

Sts. Innocentius

Innsbruck University

In Partibus Infidelium

In Petto

Inquisition

Canonical Inquisition

Asylums and Care for the Insane

Insanity

Early Christian Inscriptions

Inspiration of the Bible

Installation

Instinct

Institute of Mary

Institute of Mission Helpers of the Sacred Heart

Irish Institute of the Blessed Virgin Mary

Institute of the Brothers of the Christian Schools

Roman Historical Institutes

Canonical Institution

Intellect

Vicariate Apostolic of Intendencia Oriental y Llanos de San Martín

Intention

Intercession (Mediation)

Episcopal Intercession

Interdict

Psychology of Interest

Interest

Interims

Internuncio

Biblical Introduction

Introit

Intrusion

Intuition

Inventory of Church Property

Canonical Investiture

Conflict of Investitures

Invitatorium

School of Iona

Ionian Islands

Ionian School of Philosophy

Ionopolis

Iowa

Arnold Ipolyi

Bl. Ippolito Galantini

Ipsus

Ireland

Irish Literature

Ven. William Ireland

St. Irenaeus

Sister Irene

Irenopolis

Ignacio de Iriarte

Irish, in Countries other than Ireland

Irish College, in Rome

Irish Colleges, on the Continent

Irish Confessors and Martyrs

Irnerius

Iroquois

Irregularity

Irremovability

Irvingites

Isaac

Isaac of Armenia

Isaac of Nineveh

Isaac of Seleucia

Isabella I

Bl. Isabel of France

Isaias

Isaura

Diocese of Ischia

Diocese of Isernia and Venafro

St. Isidore of Pelusium

St. Isidore of Seville

Isidore of Thessalonica

St. Isidore the Labourer

Isionda

José Francisco de Isla

Islam

Isleta Pueblo

Simon Islip

Ismael

Ispahan

Israelites

Issachar

Issus

St. Ita

Italians in the United States

Italo-Greeks

Italy

Italian Literature

Ite Missa Est

Itineraria

Itinerarium

Franz Ittenbach

St. Ives

Levi Silliman Ives

St. Ivo of Chartres

Ivory

Diocese of Ivrea

Fernando de Alba Ixtlilxochitl