List of Roman Catholic dioceses in South America

The Catholic Church in its entirety comprises 2,988 ecclesiastical jurisdictions, including over 640 archdioceses and 2,206 dioceses, as well as apostolic vicariates, apostolic exarchates, apostolic administrations, apostolic prefectures, military ordinariates, personal ordinariates, personal prelatures, territorial prelatures, territorial abbacies and missions sui juris around the world.

In addition to these jurisdictions, there are 2,091 titular sees (bishoprics, archbishoprics and metropolitanates).

This is a structural list to show the relationships of each diocese to one another, grouped by ecclesiastical province, within each episcopal conference, within each continent or other geographical area.

The list needs regular updating and is incomplete, but as articles are written up, more will be added, and various aspects need to be regularly updated.

This refers to Catholic dioceses in the world, of all (Latin or Eastern) Churches, as of 2 February 2017^[update].

Additional types, exclusively for the Eastern Churches, Anglican and extraordinary form

These (arch)dioceses are 'exempt' from belonging to any ecclesiastical province, hence only the Vatican can exert the authority and coordinating functions normally falling to the Metropolitan Archbishop. We group them here geographically. Nevertheless, most belong to an episcopal conference, in which case the more relevant mention is in its geographical region, as exempt dioceses as such don't have specific ties with each other

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