List of Catholic dioceses in Nigeria

The Catholic Church in Nigeria is mainly composed of a Latin hierarchy, joined in a national Episcopal Conference of Nigeria, and a single Eastern Catholic (transnational) see, comprising: There are no titular sees.

All defunct jurisdictions have current successor sees.

There is an Apostolic Nunciature (papal diplomatic representation at embassy-level) to Nigeria in the national capital, Abuja.

It also hosts the papal Permanent Observer to Economic Community of West African States (ECOWAS).